An adverbial clause modifies the main clause the way an adverb would — it tells when, why, although, if, so that, or by what means something happens. German builds these with subordinating conjunctions (weil, wenn, obwohl, damit…), and they all obey the same structural law: the finite verb goes to the end. What gives B2 learners trouble is not the verb-final rule itself but what happens when the adverbial clause moves to the front of the sentence — and the genuine semantic choices, above all als versus wenn for past time. This page sorts the conjunctions by meaning and then drills the two things competitors skip: the fronting rule and the als/wenn split.
The relations, sorted by meaning
Adverbial conjunctions group naturally by the logical relation they express. Each one sends the verb to the end of its clause; the table gives the core members and a model sentence.
| Relation | Conjunctions | Model |
|---|---|---|
| Temporal (time) | als, wenn, während, bevor, nachdem, seit(dem), bis, sobald | Bevor ich gehe, esse ich etwas. |
| Causal (cause) | weil, da | Wir bleiben zu Hause, weil es regnet. |
| Concessive (although) | obwohl, obgleich, obschon | Obwohl es regnet, gehen wir spazieren. |
| Conditional (if) | wenn, falls | Falls es regnet, nehmen wir den Bus. |
| Purpose (in order that) | damit | Damit du es verstehst, erkläre ich es nochmal. |
| Consecutive (result) | sodass, so … dass | Es regnete, sodass wir drinnen blieben. |
| Modal (means) | indem | Man lernt, indem man Fehler macht. |
Wir bleiben zu Hause, weil es heute den ganzen Tag regnet.
We're staying home because it's raining all day today. (regnet at the end — verb-final)
Obwohl ich todmüde war, konnte ich nicht einschlafen.
Although I was dead tired, I couldn't fall asleep. (war final in the obwohl-clause)
Ich erkläre es noch einmal, damit alle es verstehen.
I'll explain it again so that everyone understands it. (verstehen at the end)
Two pairs deserve a quick disambiguation. Causal: weil is the everyday "because" and da is "since/as," used when the reason is already known or stands first; both are verb-final (unlike the coordinating denn, which keeps V2 — covered on the conjunctions page). Purpose vs result: damit expresses an intended purpose ("so that … may"), while sodass states an actual consequence ("with the result that"). Damit also requires different subjects — when the subjects match, German switches to um…zu (Ich spare, um ein Auto zu kaufen, not damit ich kaufe).
The fronting rule: the Vorfeld and the verb right after the comma
Here is the insight B2 learners most need. A German main clause is built on the V2 principle: the finite verb sits in the second position, and exactly one element occupies the first slot — the Vorfeld (pre-field). That first element can be a subject, an adverb, an object — or an entire subordinate clause.
When you front an adverbial clause, the whole clause counts as the single first element. The very next thing must be the finite verb of the main clause, sitting immediately after the comma. This produces the famous "verb-comma-verb" collision that looks alarming but is perfectly correct.
Weil es regnet, bleiben wir zu Hause.
Because it's raining, we're staying home. (regnet ends the fronted clause; bleiben — the main verb — comes right after the comma)
Als ich nach Hause kam, war niemand da.
When I got home, nobody was there. (kam ends the clause, war starts the main clause immediately)
Obwohl wir uns beeilt hatten, verpassten wir den Zug.
Although we had hurried, we missed the train. (hatten…then verpassten right after the comma)
Read Weil es regnet, bleiben wir zu Hause carefully. The fronted clause Weil es regnet fills the Vorfeld as one unit; bleiben is the V2 main verb and therefore must come next; the subject wir slides to third position, after its own verb. This subject-after-verb order (inversion) is obligatory and is the part English speakers omit. English keeps the subject first (Because it's raining, *we are staying home), so the German pattern — clause, comma, *verb, subject — feels backwards. The rule is mechanical once you see it: a fronted subordinate clause is the Vorfeld, so the main verb owns the second slot.
You also have a free choice of position. The adverbial clause may go before the main clause (fronted, with inversion) or after it (no inversion, normal V2 main clause first). Both are correct; fronting puts emphasis on the circumstance.
Wir bleiben zu Hause, weil es regnet.
We're staying home because it's raining. (clause at the end — main clause keeps normal order)
als vs wenn: the past-time split
The most consequential conjunction choice in this whole area is als versus wenn for time. English uses "when" for everything; German splits it.
- als — a single, completed event in the past. One time, finished. "When" = "the time that."
- wenn — a repeated event ("whenever," at any time) or any event in the present or future.
Als ich gestern aufwachte, schien die Sonne.
When I woke up yesterday, the sun was shining. (one past event → als)
Wenn ich morgens aufwache, trinke ich erst einen Kaffee.
When(ever) I wake up in the morning, I first have a coffee. (repeated habit → wenn)
Wenn der Zug kommt, steigen wir ein.
When the train comes, we'll get on. (future event → wenn)
The classic error is using wenn for a one-off past event because English "when" tempts you toward the more "default-looking" word. Wenn ich gestern aufwachte is wrong for a single past morning; it must be Als ich gestern aufwachte. A useful memory hook: als = a single past moment (both start with "a"). For the third member of the family — wann, the question word "at what time" — see the dedicated als/wenn/wann page; wann never introduces an adverbial clause, only a question (direct or indirect).
Conditional and temporal subtleties worth flagging
wenn doubles as the conditional "if" (Wenn es regnet, bleiben wir zu Hause can mean either "whenever it rains" or "if it rains" — context decides). falls is unambiguously "in case / if," used for genuinely uncertain conditions. Among the temporals, nachdem ("after") forces a tense step-back: the nachdem-clause typically stands one tense earlier than the main clause (Plusquamperfekt + Perfekt/Präteritum), because the action is completed before the main action begins.
Nachdem wir gegessen hatten, gingen wir spazieren.
After we had eaten, we went for a walk. (nachdem-clause in the pluperfect: hatten…, main clause in the past: gingen)
Seitdem sie in Berlin wohnt, sehen wir sie seltener.
Since she's been living in Berlin, we see her less often. (seitdem = temporal 'since', verb-final wohnt)
English contrast
The decisive differences are three. First, English subordinate clauses keep normal SVO order (because it is raining), whereas German forces the verb to the end (weil es regnet). Second, when an English adverbial clause is fronted, the main clause keeps the subject first (Because it rained, we stayed), but German requires verb-second, pushing the subject behind its verb (Weil es regnete, blieben wir). Third, English collapses time, condition, and habit into a single "when/if," while German distinguishes als (one past event), wenn (repetition / present / future / condition), and falls (uncertain condition). None of these distinctions has an English trigger, so each must be applied by rule.
Common Mistakes
❌ Weil es regnet, wir bleiben zu Hause.
Incorrect — the fronted clause fills the Vorfeld, so the main verb must come right after the comma: …, bleiben wir.
✅ Weil es regnet, bleiben wir zu Hause.
Because it's raining, we're staying home.
❌ Wir bleiben zu Hause, weil es regnet draußen.
Incorrect — V2 kept inside the weil-clause; the finite verb regnet must be final: …weil es draußen regnet.
✅ Wir bleiben zu Hause, weil es draußen regnet.
We're staying home because it's raining outside.
❌ Wenn ich gestern nach Hause kam, war niemand da.
Incorrect — a single past event requires als, not wenn.
✅ Als ich gestern nach Hause kam, war niemand da.
When I got home yesterday, nobody was there.
❌ Ich spare Geld, damit ich ein Auto kaufe.
Incorrect — when the subject is the same in both clauses, German prefers um…zu over damit.
✅ Ich spare Geld, um ein Auto zu kaufen.
I'm saving money to buy a car.
❌ Obwohl es regnet, aber wir gehen spazieren.
Incorrect — obwohl already carries the concessive meaning; the extra aber is redundant and ungrammatical here.
✅ Obwohl es regnet, gehen wir spazieren.
Although it's raining, we're going for a walk.
Key Takeaways
- Adverbial clauses group by meaning — temporal, causal, concessive, conditional, purpose, consecutive, modal — and all are verb-final.
- A fronted adverbial clause fills the Vorfeld, so the main-clause verb comes immediately after the comma, with the subject behind it.
- als = a single completed past event; wenn = repetition, present, future, or condition; falls = uncertain condition.
- damit (purpose, different subjects) gives way to um…zu when the subject is shared; sodass states an actual result.
- A comma always separates the two clauses; the conjunctions (weil, obwohl, damit, nachdem) are written lowercase.
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Start learning German→Related Topics
- Verb-Final Order in Subordinate ClausesB1 — Why a subordinating conjunction sends the finite verb to the very end of the clause — and why in compound tenses the auxiliary lands dead last.
- Subordinating Conjunctions: OverviewB1 — Every subordinating conjunction — dass, weil, wenn, obwohl, damit and the rest — does the same thing: it sends the finite verb to the end of its clause. Learn the list, and the syntax becomes automatic.
- als vs wenn vs wannB1 — How to choose among the three German words for 'when': wann for questions, als for a single past event, wenn for repeated past, present, future, and conditions.
- Conditional Sentences: OverviewB1 — The three German conditional types at a glance — real (wenn + present), unreal present (wenn + Konjunktiv II), and unreal past (wenn + Plusquamperfekt-Konjunktiv) — plus the key rule that würde belongs in the result clause, never the wenn-clause.
- Temporal Conjunctions: als, wenn, während, bevor, nachdem, bis, seitB1 — The time conjunctions all send the verb to the end, but each marks a precise relationship — and the als/wenn split for the past is one of the top intermediate errors.