Introduction to Subordinate and Coordinate Clauses

Every language needs ways to connect ideas — to say not just "I am tired" and "I got up late" as two separate facts, but to show the relationship between them: "I am tired because I got up late." In German, this connecting work is done by two fundamentally different systems, and understanding both is what separates someone who speaks German in short, choppy sentences from someone who speaks it with the fluency and rhythm of a native. The first system is coordination: joining two complete, equal clauses side by side using conjunctions like und, aber, oder, and denn. These coordinating conjunctions sit between clauses without disturbing the word order of either one. The second and more complex system is subordination: one clause becomes dependent on the other, introduced by a subordinating conjunction like weil, dass, obwohl, or als, and the word order inside that dependent clause changes — the conjugated verb moves to the very end. These two systems are not alternatives; they are complementary tools that every fluent German speaker uses constantly, often in the same sentence. This lesson covers both in full: every major conjunction, all word order rules, special cases with modal verbs and compound tenses, and the full range of meaning each conjunction carries.

Why Clause Connection Matters

Short sentences are not enough: Simple sentences like Ich bin müde and Ich habe schlecht geschlafen communicate facts, but connecting them — Ich bin müde, weil ich schlecht geschlafen habe — communicates reasoning, causality, and nuance. This is how real German sounds.
Word order mistakes are immediately noticeable: Leaving the verb in second position inside a subordinate clause — weil ich habe keine Zeit — is one of the most distinctive intermediate learner errors. Getting it right signals a genuine command of German grammar.
Coordinating conjunctions are deceptively simple: Und and aber seem easy, but the full set of coordinating conjunctions — especially denn versus weil, and sondern versus aber — involves distinctions that catch learners off guard.
Subordinate clauses unlock complex meaning: Expressing conditions, concessions, purposes, time sequences, indirect questions, and reported speech all require subordinate clauses. Without them, you are limited to stating facts. With them, you can argue, explain, narrate, and persuade.

Understanding Subordinate and Coordinate Clauses

Part One — Coordinating conjunctions

A coordinating conjunction joins two main clauses of equal grammatical status. Neither clause is dependent on the other. The critical feature of coordinating conjunctions is that they have no effect on word order — both clauses retain normal main clause word order, with the conjugated verb in position two. The conjunction sits between the clauses and is grammatically outside both of them.

Conjunction	Meaning	Example	English
und	and	Ich lerne Deutsch und mein Bruder lernt Spanisch.	I am learning German and my brother is learning Spanish.
aber	but / however	Ich mag Kaffee, aber ich trinke lieber Tee.	I like coffee, but I prefer tea.
oder	or	Kommst du heute, oder kommst du morgen?	Are you coming today, or are you coming tomorrow?
denn	because / for (explains reason)	Ich bleibe zu Hause, denn es regnet.	I am staying home, because it is raining.
sondern	but rather / but instead (after negation)	Er kommt nicht heute, sondern morgen.	He is not coming today, but tomorrow.
doch	but / yet / however (stronger contrast than aber)	Ich wollte gehen, doch es war zu spät.	I wanted to go, but it was too late.

The crucial distinction — denn versus weil

Both denn and weil translate as "because," and both introduce a reason. The difference is grammatical but fundamental: denn is a coordinating conjunction and leaves word order untouched; weil is a subordinating conjunction and sends the verb to the end. In meaning they overlap, but they cannot be swapped without changing the word order of the clause that follows.

With denn (coordinating — verb stays in position 2)	With weil (subordinating — verb goes to end)
Ich bleibe zu Hause, denn es regnet.	Ich bleibe zu Hause, weil es regnet.
Er ist müde, denn er hat schlecht geschlafen.	Er ist müde, weil er schlecht geschlafen hat.
Normal V2 order after the conjunction	Verb pushed to the very end of the clause

The crucial distinction — aber versus sondern

Both aber and sondern translate as "but." The rule is precise: sondern is only used after a negated clause, and it introduces a correction — replacing the negated element with something else. Aber introduces any kind of contrast or concession, whether the first clause is negated or not.

Conjunction	When to use it	Example
sondern	After a negation — correcting or replacing what was negated	Er trinkt keinen Kaffee, sondern Tee. — He does not drink coffee, but tea.
sondern	After a negation with nicht	Das ist nicht schwer, sondern einfach. — That is not hard, but easy.
aber	Any contrast — negated or not	Ich mag ihn, aber er kann manchmal schwierig sein. — I like him, but he can sometimes be difficult.
aber	Concession — acknowledging something while contrasting it	Das Essen war teuer, aber sehr gut. — The food was expensive, but very good.

Part Two — Subordinating conjunctions and the verb-final rule

A subordinating conjunction introduces a dependent clause — a clause that cannot stand alone and that is grammatically subordinate to the main clause. The most important grammatical consequence of subordination is the verb-final rule: the conjugated verb moves to the very last position in the subordinate clause. Everything else — the subject, objects, adverbs, time expressions — sits between the conjunction and the displaced verb.

Main clause word order	Subordinate clause word order
Subject → verb (pos. 2) → rest	Conjunction → subject → rest → verb (final)
Er schläft.	…weil er schläft.
Sie kommt morgen.	…dass sie morgen kommt.
Ich habe keine Zeit.	…weil ich keine Zeit habe.

Subordinating conjunctions — the complete set

Conjunction	Meaning / use	Example	English
weil	because — states the reason for something	Ich lerne Deutsch, weil ich in Wien arbeiten möchte.	I am learning German because I want to work in Vienna.
da	since / because — used when the reason is already known or obvious	Da es schon spät ist, gehen wir jetzt.	Since it is already late, we are going now.
dass	that — introduces reported speech, beliefs, and statements	Ich hoffe, dass du bald gesund wirst.	I hope that you will get better soon.
ob	whether / if — introduces indirect yes/no questions	Ich weiß nicht, ob er kommt.	I do not know whether he is coming.
wenn	when / if — conditions and habitual or repeated events; also future "when"	Wenn ich Zeit habe, lese ich gern.	When / if I have time, I enjoy reading.
als	when — single completed event in the past	Als ich in Berlin ankam, regnete es.	When I arrived in Berlin, it was raining.
obwohl	although / even though — introduces a concession	Obwohl es kalt war, gingen wir spazieren.	Although it was cold, we went for a walk.
damit	so that — expresses purpose; the subjects of both clauses are usually different	Ich spreche langsam, damit du mich verstehst.	I speak slowly so that you understand me.
um … zu	in order to — expresses purpose; subjects of both clauses must be identical	Ich lerne jeden Tag, um besser zu werden.	I study every day in order to improve.
bevor	before — temporal	Wasch dir die Hände, bevor du isst.	Wash your hands before you eat.
nachdem	after — temporal; requires tense backshift	Nachdem sie gegessen hatte, ging sie schlafen.	After she had eaten, she went to sleep.
während	while / whereas — simultaneous actions or contrast	Während er kocht, liest sie.	While he cooks, she reads.
bis	until — temporal limit	Warte hier, bis ich zurückkomme.	Wait here until I come back.
seit(dem)	since — from a point in time; ongoing situation	Seitdem er hier wohnt, ist er viel glücklicher.	Since he has been living here, he has been much happier.
sobald	as soon as — temporal	Ruf mich an, sobald du ankommst.	Call me as soon as you arrive.
sodass	so that / with the result that — introduces a consequence	Es regnete stark, sodass wir zu Hause blieben.	It rained heavily, so that we stayed at home.
falls	in case / if — conditional, slightly more formal than wenn	Falls du Fragen hast, meld dich.	If you have questions, get in touch.
sofern	provided that / as long as — formal conditional	Sofern das Wetter gut ist, fahren wir.	Provided the weather is good, we will go.
solange	as long as — duration	Solange du hier bist, kannst du bleiben.	As long as you are here, you can stay.
obgleich / obschon	although — more formal alternatives to obwohl	Obgleich er krank war, kam er zur Arbeit.	Although he was ill, he came to work.

Verb placement with modal verbs in subordinate clauses

When a subordinate clause contains a modal verb (können, müssen, dürfen, wollen, sollen, mögen), both the infinitive and the conjugated modal move toward the end of the clause. The conjugated modal verb is the last element.

Main clause	Subordinate clause	English
Ich kann Deutsch sprechen.	…weil ich Deutsch sprechen kann.	…because I can speak German.
Er muss morgen arbeiten.	…obwohl er morgen arbeiten muss.	…although he has to work tomorrow.
Sie will ins Kino gehen.	…dass sie ins Kino gehen will.	…that she wants to go to the cinema.

Verb placement in the perfect tense in subordinate clauses

In the perfect tense (Perfekt), a subordinate clause contains both a past participle and an auxiliary (haben or sein). The auxiliary — which is the conjugated verb — goes to the very end. The past participle sits directly before it.

Main clause (Perfekt)	Subordinate clause (Perfekt)	English
Ich habe gegessen.	…weil ich gegessen habe.	…because I have eaten.
Er ist gefahren.	…nachdem er gefahren ist.	…after he had driven.
Wir haben gewartet.	…obwohl wir gewartet haben.	…although we waited.

The double infinitive — modal verbs in the perfect tense inside subordinate clauses

When a modal verb is used in the perfect tense inside a subordinate clause, the result is a double infinitive construction — two infinitives standing side by side at the end of the clause, with the conjugated auxiliary haben at the very end. This is one of the most challenging word order patterns in German and one that advanced learners still find difficult.

Structure	Example	English
…conjunction + subject + … + infinitive + modal infinitive + haben	…weil ich früh aufstehen müssen habe. ❌	Incorrect order — haben must not follow modal infinitive directly
Correct order: haben precedes both infinitives	…weil ich früh habe aufstehen müssen. ✓	…because I had to get up early.
	…weil sie das nicht hat sagen dürfen.	…because she was not allowed to say that.
	…obwohl er hat helfen wollen.	…although he wanted to help.

When the subordinate clause comes first — inverted main clause

A subordinate clause can appear before the main clause instead of after it. When it does, the entire subordinate clause counts as position one of the overall sentence. Because German requires the conjugated verb to be in position two, the main clause verb immediately follows the subordinate clause — before the subject of the main clause. This inversion is not optional; it is required by the verb-second rule.

Subordinate clause first	English
Weil es regnet, bleibe ich zu Hause.	Because it is raining, I am staying home.
Obwohl er müde war, kam er zur Party.	Although he was tired, he came to the party.
Als ich ankam, schlief sie schon.	When I arrived, she was already sleeping.
Wenn du Zeit hast, ruf mich an.	If you have time, call me.
Nachdem sie gegessen hatte, ging sie spazieren.	After she had eaten, she went for a walk.

The tense sequence with nachdem

The conjunction nachdem (after) requires a specific tense relationship between the two clauses. The event in the nachdem clause happened first and must be expressed in an earlier tense than the main clause. If the main clause uses simple past (Präteritum), the nachdem clause uses past perfect (Plusquamperfekt). If the main clause uses present or perfect, the nachdem clause uses perfect.

Main clause tense	Nachdem clause tense	Example
Simple past (Präteritum)	Past perfect (Plusquamperfekt)	Nachdem er gegessen hatte, ging er schlafen.
Present / perfect	Perfect (Perfekt)	Nachdem sie angekommen ist, ruft sie an.

Wenn versus als — the complete picture

Both wenn and als translate as "when" in English, but they are not interchangeable. The rule is consistent and applies without exception: als is used for a single, completed event in the past. Wenn is used for everything else — conditions, hypothetical situations, repeated past events, and any reference to the present or future.

Situation	Conjunction	Example	English
Single event in the past	als	Als ich zwanzig war, zog ich nach Berlin.	When I was twenty, I moved to Berlin.
Repeated event in the past	wenn	Wenn ich als Kind krank war, blieb ich im Bett.	Whenever I was ill as a child, I stayed in bed.
Present "when"	wenn	Wenn ich müde bin, trinke ich Kaffee.	When I am tired, I drink coffee.
Future "when"	wenn	Wenn ich fertig bin, ruf ich dich an.	When I am done, I will call you.
Conditional "if"	wenn	Wenn du willst, können wir gehen.	If you want, we can go.

Damit versus um … zu — expressing purpose

Both damit and um … zu express purpose — they both mean "in order to" or "so that." The difference is the subject: if both clauses share the same subject, use um … zu with an infinitive. If the subjects of the two clauses are different, use damit with a full subordinate clause.

Same subject → um … zu	Different subjects → damit
Ich lerne Deutsch, um in Wien zu arbeiten.	Ich spreche langsam, damit du mich verstehst.
Er spart Geld, um ein Auto zu kaufen.	Sie schreibt alles auf, damit er es nicht vergisst.
Wir trainieren täglich, um fit zu bleiben.	Ich erkläre es nochmal, damit alle es verstehen.

Weil versus da — two ways to say "because"

Both weil and da introduce causal clauses and send the verb to the end. The distinction is one of information structure: weil introduces new, unknown, or important information about the reason. Da is used when the reason is already known to both speaker and listener — it is a given, a shared premise. Da clauses also frequently appear at the beginning of the sentence.

Weil — new or important information	Da — shared or obvious reason
Ich bin müde, weil ich heute Nacht kaum geschlafen habe.	Da es schon spät ist, sollten wir gehen.
Er hat den Job bekommen, weil er sehr gut vorbereitet war.	Da wir uns kennen, kann ich das offen sagen.

Step-by-Step Guide to Connecting Clauses

Decide what relationship you want to express: Are you adding information (coordination), explaining a reason, expressing a condition, describing a purpose, showing contrast, or narrating a time sequence? This determines whether you need a coordinating or subordinating conjunction.
Choose the right conjunction: Coordinating — und, aber, oder, denn, sondern, doch. Subordinating — select from the full table based on the meaning you need.
For coordinating conjunctions: Write both main clauses with normal verb-second word order. Place the conjunction between them with a comma. Check whether aber or sondern is needed — if the first clause is negated and the second corrects it, use sondern.
For subordinating conjunctions: Write the main clause, add a comma, then write the conjunction followed by the subject of the subordinate clause, then all other elements, and finally move the conjugated verb to the very end.
Handle compound tenses and modals: In the perfect tense, the auxiliary goes last. With modal verbs, the modal goes last. With double infinitive constructions, haben comes before both infinitives.
If the subordinate clause comes first: The subordinate clause occupies position one of the sentence. The main clause verb must then come immediately in position two — before the main clause subject. Do not forget this inversion.
Check your comma placement: A comma always separates the main clause from any subordinate clause, regardless of which comes first.

Pro Tip: Every time you learn a new subordinating conjunction, write one sentence with the subordinate clause at the end — Ich bleibe, weil es regnet — and one with it at the front — Weil es regnet, bleibe ich. This immediately forces you to practise the inversion rule and doubles the value of each example you write.

Memory Pattern: Think of coordinating conjunctions as a bridge between two equal houses — both houses keep their own front door exactly where it was, and the bridge just connects them. Think of subordinating conjunctions as a tow truck that hooks onto the verb in the dependent clause and drags it to the very end. Once you have those two images — the neutral bridge versus the tow truck — the word order rules become almost physical.

Exceptions & Special Cases

The colloquial weil with main clause word order

In informal spoken German — particularly in younger urban speech — it is increasingly common to hear weil used with main clause word order: Ich komme nicht, weil ich habe keine Zeit instead of Ich komme nicht, weil ich keine Zeit habe. This pattern is well-documented and widespread enough that linguists recognise it as a genuine feature of colloquial German. However, it is stigmatised in formal writing and marked as non-standard in grammar assessments. The subtle distinction that native speakers sometimes make is this: weil with subordinate word order introduces a factual reason, while weil with main clause word order can introduce a personal, subjective reason or a casual afterthought. As a learner, always use the subordinate word order in writing and formal speech.

Coordinating conjunctions that occupy position one

The standard coordinating conjunctions — und, aber, oder, denn, sondern — sit between clauses and are grammatically outside both. They do not occupy position one of the main clause, so they do not trigger inversion. However, several words that function as coordinating adverbs — deshalb, daher, deswegen, trotzdem, dennoch, außerdem, jedoch — behave differently: they do occupy position one, which means the verb must follow immediately in position two, and the subject moves to position three.

Conjunction-like adverb	Meaning	Example	Note
deshalb / daher / deswegen	therefore / that is why	Es regnet. Deshalb bleibe ich zu Hause.	Verb follows immediately — bleibe in position 2
trotzdem	nevertheless / in spite of that	Es regnete. Trotzdem gingen wir spazieren.	Verb in position 2 after trotzdem
dennoch	nevertheless (more formal)	Er war krank. Dennoch kam er zur Arbeit.	Formal register; same inversion rule
außerdem	furthermore / besides	Das ist teuer. Außerdem brauche ich es nicht.	Adds information; triggers inversion
jedoch	however (formal)	Er versprach es. Jedoch hielt er es nicht.	Formal alternative to aber; triggers inversion

Indirect questions introduced by question words

Subordinate clauses are also used to embed direct questions into a sentence — turning them into indirect questions. When the original question was a yes/no question, ob introduces the subordinate clause. When the original question used a question word (wer, was, wo, wann, wie, warum, welch-), that same question word acts as the subordinating conjunction and sends the verb to the end.

Direct question	Indirect question	English
Kommt er?	Ich weiß nicht, ob er kommt.	I do not know whether he is coming.
Wo wohnt sie?	Kannst du mir sagen, wo sie wohnt?	Can you tell me where she lives?
Wann fährt der Zug ab?	Ich frage mich, wann der Zug abfährt.	I wonder when the train departs.
Warum hat er das gemacht?	Niemand weiß, warum er das gemacht hat.	Nobody knows why he did that.
Wie viel kostet das?	Können Sie mir sagen, wie viel das kostet?	Can you tell me how much that costs?

Relative clauses — subordinate clauses introduced by relative pronouns

Relative clauses are a special type of subordinate clause introduced not by a conjunction but by a relative pronoun (der, die, das, dem, den, dessen etc.). They follow the same verb-final rule as all subordinate clauses, but the relative pronoun must agree in gender and number with the noun it refers to, and its case is determined by its grammatical function inside the relative clause itself — not by the case of the noun in the main clause.

Main clause noun	Relative pronoun	Full sentence	English
der Mann (masc.)	den (Accusative — object of kennen)	Das ist der Mann, den ich kenne.	That is the man whom I know.
die Frau (fem.)	die (Nominative — subject of singen)	Das ist die Frau, die so schön singt.	That is the woman who sings so beautifully.
das Kind (neut.)	dem (Dative — after helfen)	Das ist das Kind, dem ich geholfen habe.	That is the child whom I helped.
der Freund (masc.)	dessen (Genitive — possession)	Das ist der Freund, dessen Auto ich benutze.	That is the friend whose car I use.
die Bücher (plural)	die (Nominative plural)	Das sind die Bücher, die ich empfehle.	Those are the books that I recommend.

Common Mistakes

Mistake 1: Ich bleibe zu Hause, weil ich habe keine Zeit.
- Fix: In a subordinate clause, the conjugated verb must move to the very end. Everything — including the object — sits before it. Correct: Ich bleibe zu Hause, weil ich keine Zeit habe.
Mistake 2: Er kommt nicht heute, aber morgen.
- Fix: After a negated clause, use sondern to introduce the correction, not aber. Aber introduces a contrast; sondern corrects what was negated. Correct: Er kommt nicht heute, sondern morgen.
Mistake 3: Wenn ich Kind war, spielte ich viel draußen.
- Fix: Wenn cannot be used for a single, completed past event. Childhood is a single, defined period in the past — use als. Correct: Als ich Kind war, spielte ich viel draußen.
Mistake 4: Ich lerne Deutsch, damit ich kann besser kommunizieren.
- Fix: Both subjects are the same here — I learn, I communicate. When the subjects match, use um … zu with an infinitive, not damit. Correct: Ich lerne Deutsch, um besser kommunizieren zu können.
Mistake 5: Weil es regnet, ich bleibe zu Hause.
- Fix: When a subordinate clause comes first, it occupies position one. The main clause verb must immediately follow in position two — before the subject. Correct: Weil es regnet, bleibe ich zu Hause.
Mistake 6: Nachdem er essen wird, geht er spazieren.
- Fix: Nachdem requires the earlier event to be in a completed (past) tense, not a future tense. The tense must step back: if the main clause is present, the nachdem clause uses perfect. Correct: Nachdem er gegessen hat, geht er spazieren.
Nuance 1: Using denn and weil interchangeably.
- Fix: Both mean "because" but have different grammatical consequences. Denn is coordinating — the verb stays in position two after it: Ich bleibe, denn es regnet. Weil is subordinating — the verb goes to the end: Ich bleibe, weil es regnet. Mixing the grammar of one with the conjunction of the other produces an incorrect sentence.
Nuance 2: Dropping dass after reporting verbs, as in English.
- Fix: English often omits "that" — "I think it will rain." German almost never omits dass in the same construction. Saying Ich denke, es regnet morgen is grammatically possible but produces two juxtaposed main clauses, which sounds abrupt. The natural and expected form is: Ich denke, dass es morgen regnet.

Pronunciation Guide

weil – VAIL – Ich bleibe, weil es regnet. — the w is pronounced as English v; the diphthong rhymes with English "mile"
dass – DASS – Ich glaube, dass er kommt. — short sharp a, double s is crisp; never confused with das (the article)
obwohl – ob-VOHL – Obwohl es kalt war, gingen wir. — stress on the second syllable; the w is again English v
nachdem – nach-DAYM – Nachdem sie gegessen hatte. — stress on dem; the ch in nach is the soft palatal sound
obgleich – ob-GLAICH – Obgleich er müde war. — formal register; the ei diphthong rhymes with English "high"
sodass – zo-DASS – Es regnete, sodass wir blieben. — stress on the second syllable; written as one word
deshalb – DES-halp – Deshalb bin ich hier. — stress on the first syllable; the final b devoices to p

Cultural Insights

Precision and logical structure: German communication — in professional emails, academic writing, and formal speech — places a high value on making logical relationships explicit. Using subordinate clauses correctly to signal causality (weil), concession (obwohl), and condition (wenn) is not just grammar — it is a cultural expectation. A well-structured argument in German maps its own logic through its clause structure, and readers notice when it does not.
Storytelling with als: When Germans share personal memories or anecdotes, als is the signal that a narrative is beginning. Als ich das erste Mal in Wien war… (When I was in Vienna for the first time…) immediately sets a scene. The use of als rather than wenn is not just a grammar rule — it is a storytelling convention that marks the shift from general statements into personal narrative.
Politeness through indirectness: Using ob to embed a question — Könnten Sie mir sagen, ob der Arzt noch Termine hat? — is consistently perceived as more polite and less demanding than a direct question. In service situations, formal letters, and any context where you are asking someone for help or information, this indirect ob construction is the standard polite register.
The colloquial weil phenomenon as a social signal: The increasingly widespread use of weil with main clause word order in informal speech is more than a grammar mistake — it functions as a social register marker. Using it signals casualness, informality, and a deliberately relaxed relationship with prescriptive grammar. Educated native speakers know both forms and consciously switch between them depending on context. As a learner, understanding this dynamic is part of understanding how the language actually lives in the mouths of its speakers.

Practice Scenarios

Explaining Reasons: Using weil, da and denn to give reasons in everyday situations, e.g., Ich kann heute nicht kommen, weil ich einen Arzttermin habe. Da ich morgen früh aufstehen muss, gehe ich jetzt schlafen.
- Ich trinke keinen Kaffee mehr, denn es ist schon zu spät.
- Wir fahren mit dem Zug, weil das Auto in der Werkstatt ist.
- Da er kein Deutsch spricht, brauchen wir einen Dolmetscher.
Telling Stories: Using als, nachdem and während to narrate past events, e.g., Als ich in Berlin studierte, lebte ich in einer kleinen Wohnung in Mitte. Nachdem ich meinen Abschluss gemacht hatte, zog ich nach München.
- Als wir ankamen, hatte das Konzert schon begonnen.
- Während sie kochte, rief ihr Bruder an.
- Nachdem er den Brief gelesen hatte, war er sehr nachdenklich.
Expressing Conditions and Concessions: Using wenn, falls and obwohl in practical situations, e.g., Wenn du Hilfe brauchst, melde dich jederzeit. Obwohl das Projekt schwierig war, haben wir es pünktlich abgeschlossen.
- Falls du nicht kommen kannst, sag bitte Bescheid.
- Obwohl er wenig Erfahrung hat, macht er einen guten Eindruck.
- Wenn das Wetter schön ist, gehen wir an den See.
Stating Purposes: Using damit and um … zu to express goals and intentions, e.g., Ich übe täglich, um flüssiger zu sprechen. Der Lehrer wiederholt alles zweimal, damit die Schüler es besser verstehen.
- Sie lernt früh, um die Prüfung zu bestehen.
- Er schreibt alles auf, damit er nichts vergisst.
- Wir sind früher losgegangen, um pünktlich anzukommen.
Asking Indirectly: Using ob and embedded question words to form polite, indirect questions, e.g., Könnten Sie mir sagen, ob der nächste Zug noch fährt? Ich würde gerne wissen, wann das Büro öffnet.
- Weißt du, wo ich hier parken kann?
- Ich frage mich, warum er so lange nichts gesagt hat.
- Können Sie mir erklären, wie das Formular ausgefüllt werden soll?

Follow-Up Questions

What is the difference between a coordinating and a subordinating conjunction?
- Example Answer: A coordinating conjunction — und, aber, oder, denn, sondern — joins two main clauses of equal status and does not change the word order of either clause. The verb stays in position two in both clauses. A subordinating conjunction — weil, dass, obwohl, als, wenn — introduces a dependent clause and sends the conjugated verb to the very end of that clause. The dependent clause cannot stand alone as a sentence.
When do I use als and when do I use wenn?
- Example Answer: Use als for a single, completed event or period in the past — Als ich zwanzig war, wohnte ich in Hamburg. Use wenn for everything else: repeated past events, present situations, future events, and conditions — Wenn ich müde bin, trinke ich Kaffee. Immer wenn ich ihn sah, lächelte er. The key question is: did this happen once in the past, or does it happen repeatedly or hypothetically?
When should I use damit and when um … zu?
- Example Answer: Use um … zu when both clauses share the same subject — the person doing the first action is the same person benefiting from or performing the second: Ich spare, um ein Auto zu kaufen. Use damit when the subjects are different — one person does something so that another person benefits: Ich erkläre es langsam, damit du es verstehst.
What happens to the word order when a subordinate clause comes before the main clause?
- Example Answer: When the subordinate clause comes first, it fills position one of the sentence. Because German requires the conjugated verb to be in position two, the main clause verb immediately follows the subordinate clause — before the main clause subject. So: Weil es regnet, bleibe ich zu Hause. The subject ich comes after the verb bleibe, not before it.
What is the difference between weil and denn?
- Example Answer: Both mean because, but they work differently. Denn is a coordinating conjunction — it sits between two main clauses and does not change word order: Ich bleibe zu Hause, denn es regnet. Weil is a subordinating conjunction — it introduces a dependent clause and sends the verb to the end: Ich bleibe zu Hause, weil es regnet. Both sentences are correct and mean the same thing, but the grammar of what follows is completely different.

Conclusion

Subordinate and coordinate clauses are the architecture of complex German — the structural system that allows ideas to be connected, ranked, and given precise relationships to one another. Coordinating conjunctions join equals without disturbing anything; subordinating conjunctions create dependencies and reorganise word order to mark that dependency. Together they give you the full range of expression that fluent German requires: you can state facts and connect them (und, aber), explain causality (weil, da, denn), set conditions (wenn, falls), acknowledge concessions (obwohl), express purpose (damit, um … zu), sequence events in time (als, nachdem, bevor, während), and ask questions indirectly (ob, embedded question words). From here, the natural progression is toward relative clauses in greater depth, and then toward the subjunctive mood — both of which build their dependent clause structures directly on the verb-final rule you have mastered here.

Practice Makes Perfect

In the exercises below you will practise choosing between coordinating and subordinating conjunctions, applying the verb-final rule in subordinate clauses, handling inverted word order when subordinate clauses come first, distinguishing als from wenn, choosing between damit and um … zu, and forming indirect questions with ob and embedded question words. Pay particular attention to the inversion rule — when the subordinate clause leads the sentence, the main clause verb must follow immediately, and this is where the most errors occur even at intermediate level.