Learn Hardcore German: Reparatur dauert Zeit.

Because Reparatur is being used in an abstract, general sense (“repair” as a concept), and German often drops the article when talking about processes or activities in general. If you referred to a specific repair, you would say Die Reparatur dauert Zeit.

Could I add an article? When would I use die Reparatur?

Yes. If you mean a particular repair, you’d use the definite article: Die Reparatur dauert Zeit or Die Reparatur dauert drei Stunden. That makes it clear you’re talking about one concrete job.

Why is Zeit used without an article?

Here Zeit also appears in an abstract, uncounted sense (“time” in general), so no article is needed. German drops the article for mass or abstract nouns when they’re not specified or counted.

What case is Zeit in, and why?

Zeit is in the accusative case, acting like a direct object that expresses duration. With verbs of duration (like dauern), German routinely uses the accusative to mark how long something lasts.

Why isn’t there a preposition like für before Zeit?

Because verbs of duration such as dauern, während, dauern, etc., directly take time expressions in the accusative. You say dauert drei Stunden, not dauert für drei Stunden.

What’s the difference between dauern and brauchen in this context?

Both convey that something “takes time,” but with a nuance. Dauern focuses on “lasting” (The repair lasts/takes time), while brauchen means “to need” (The repair needs time). In everyday use they overlap:
• Die Reparatur dauert Zeit.
• Die Reparatur braucht Zeit.

How would you express “The repair will take some time”?

You can form the future tense:
• Die Reparatur wird etwas Zeit dauern.
• Die Reparatur wird ein paar Stunden dauern.

Why is the verb dauert singular here?

Because the subject Reparatur is singular. German verbs must agree in number and person with their subject: singular subject → singular verb form (dauert).

Why don’t we use ist or another verb like “to be” here?

Ist (to be) names identity or state, not duration. To express how long something lasts, German uses dauern (“to last”) rather than sein (“to be”).