Reasons with weil and da

In brief

Use weil or da to give a reason: both can mean ‘because.’ Weil is common in everyday conversation. Da often introduces a reason that is already clear or expected, especially at the start of a sentence. In a clause introduced by either word, the conjugated verb goes at the end.

Form

Main clause + comma + weil/da + subject + other information + conjugated verb. If the reason comes first: Weil/Da + subject + other information + conjugated verb, + conjugated verb + subject + rest of the main clause.

Usage

• Use weil to answer why something happens or why you do something.
• Use da when the reason provides background for what follows; it often comes first.
• Put a comma between the reason clause and the main clause. After a reason clause comes first, start the main clause with its conjugated verb.

Examples

• Ich bleibe heute zu Hause, weil ich krank bin. — I’m staying home today because I’m sick.
• Wir nehmen den Bus, weil es regnet. — We’re taking the bus because it’s raining.
• Da der Laden schon zu ist, kaufen wir morgen ein. — Since the store is already closed, we’ll go shopping tomorrow.
• Ich gehe früh ins Bett, da ich morgen arbeiten muss. — I’m going to bed early because I have to work tomorrow.

Common mistake

❌ Ich bleibe zu Hause, weil ich bin krank.

✅ Ich bleibe zu Hause, weil ich krank bin.

Unlike English ‘because I am sick,’ a German weil clause puts the conjugated verb at the end.

Remember

After weil or da, move the conjugated verb to the end of the reason clause.