Dass, Ob, Wenn, Als, Obwohl: Subordinate Clauses Demystified
Subordinating conjunctions (dass, ob, wenn, als, obwohl, weil, damit, bevor, nachdem, während) push the conjugated verb to the end of their clause. Choose dass for statements, ob for yes/no uncertainty, wenn for repeated or future conditions/time, als for single past moments, and obwohl for genuine contrasts. Master these ten and your German stops sounding telegraphic.
Beginner German lives in main clauses: short, safe, choppy. The jump to natural speech happens the moment you chain thoughts together — and chaining means subordination.
The mechanics are uniform: conjunction first, verb last. The skill lies in picking the right connector, especially the dass/ob and wenn/als pairs that even intermediate learners blur.
The universal word-order rule
- Main: Ich denke, [dass er heute kommt.] — kommt sits at the very end
- Comma required before every subordinate clause
- If the subordinate clause leads, ONE element (the whole clause) fills position one: Wenn es regnet, bleiben wir zu Hause. Then bleibt... wait — bleiben wir: verb immediately second
- Inside the verb bracket, separable prefixes reattach: Ich weiß, dass er früh aufsteht.
Dass vs ob: statement vs embedded question
| Conjunction | Use | Example |
|---|---|---|
| dass | reporting a fact/statement | Ich glaube, dass sie recht hat. |
| ob | embedded yes/no question (whether) | Ich frage mich, ob er kommt. |
| wie/warum/wann... | embedded W-question | Ich weiß nicht, wann der Bus fährt. |
Wenn vs als: the past-time fork
- als: ONE specific moment/event in the past — Als ich Kind war, wohnten wir in Köln.
- wenn: repeated events in past (whenever), present, or future conditions/time — Immer wenn es regnete..., Wenn ich Zeit habe,...
- Future condition: Wenn ich Geld hätte, würde ich reisen. (with Konjunktiv II for unreal)
- English 'when' maps to BOTH — ask yourself: one-time past event? Use als.
Contrast and cause: obwohl, weil, da, denn
- obwohl concedes a real fact: Obwohl es teuer ist, kaufen wir es. (verb last!)
- weil gives reasons, verb last: ..., weil der Zug Verspätung hat.
- da states a known reason, clause usually leads: Da er krank war, kam er nicht.
- denn coordinates — verb stays SECOND: ..., denn der Zug hat Verspätung.
Purpose and sequence: damit, um...zu, bevor, nachdem
- damit + clause (same subject or different): Ich spreche langsam, damit alle verstehen.
- um...zu + infinitive (same subject only): Ich spreche langsam, um verstanden zu werden.
- bevor: Ruf mich an, bevor du gehst.
- nachdem demands the double-past: Nachdem er gegessen hatte, schlief er. (Plusquamperfekt then Präteritum/Perfekt)
Building fluency with sentence combining
Take two short sentences you can already say and weld them with one new connector per day: Es regnet. Wir bleiben hier. → Weil es regnet, bleiben wir hier. / Obwohl es regnet, gehen wir spazieren. Same material, opposite logic — feeling that flip is the actual lesson.
Frequently asked questions
Does the verb ALWAYS go last in subordinate clauses?
The finite (conjugated) verb does. Participles, infinitives, and separable prefixes join it at the end. But if the clause leads the sentence, the finite verb comes immediately after the comma in position two of the main clause.
Can I use wie instead of ob?
Only for genuine manner/how questions: Ich weiß nicht, wie es geht. For whether-someone-will-show-up uncertainty, German requires ob — using wie there marks you instantly.
Why do Germans mix weil with verb-second order in speech?
Spoken German increasingly treats weil loosely: ..., weil der Zug hat Verspätung occurs colloquially. It's accepted in chat, flagged in exams. Learn the standard rule first; bend it only consciously.
What's the hardest subordinator to master?
nachdem, because it drags tense sequencing with it (had eaten → slept). Practice it as a fixed two-step pattern rather than a vocabulary item.
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