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Breakdown of Der Lärm nimmt ab, wenn die Autos langsam fahren.
das Auto
the car
langsam
slowly
fahren
to drive
wenn
when
abnehmen
to decrease
der Lärm
the noise
Questions & Answers about Der Lärm nimmt ab, wenn die Autos langsam fahren.
What does nimmt ab mean, and why are nimmt and ab separated?
Abnehmen is a separable verb in German, meaning “to decrease,” “to diminish,” or “to go down.” In a main clause, the verb’s prefix (ab) detaches and moves to the end, while the conjugated part (nimmt) stays in second position. Hence nimmt ab = abnehmen.
Why is there a comma before wenn?
In German, you always separate a main clause from a subordinate clause with a comma. Since wenn introduces a subordinate (dependent) clause, you place a comma before it.
Why does the verb fahren appear at the end of the wenn-clause?
Wenn is a subordinating conjunction. Subordinating conjunctions send the conjugated verb to the very end of their clause. So in wenn die Autos langsam fahren, fahren goes last.
What case and gender is der Lärm, and how do I know?
Lärm (noise) is a masculine noun in German. Here it functions as the subject of the sentence, so it appears in the nominative case with the masculine article der.
Why is it die Autos and not den Autos?
In the wenn-clause, die Autos is the subject (they do the driving), so it’s in the plural nominative. Plural nominative for Auto is die Autos. If it were a direct object, it would become plural accusative, which also uses die (so it wouldn’t change in this particular case).
Is langsam an adjective or an adverb here, and why doesn’t it have an ending?
Here langsam modifies the verb fahren (describes how they drive), so it’s an adverb. Adverbs in German are not declined, so they appear in their base form without any adjective endings.
How can I be sure this is a general statement and not just a single event?
German uses the simple present (nimmt ab, fahren) both for “right now” and for habitual/general truths. To express the general nature in English, you’d say “Noise decreases when cars drive slowly” or “The noise goes down when cars drive slowly.”
Could I use als instead of wenn here?
No. Als is used for a single event in the past. Wenn is used for conditions, repeated events, or general statements. Since this sentence describes a repeated/general situation, wenn is correct.
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“How do German cases work?”
German has four grammatical cases: nominative (subject), accusative (direct object), dative (indirect object), and genitive (possession). The case determines the form of articles and adjectives. For example, "the dog" is "der Hund" as a subject but "den Hund" as a direct object.
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