Weil vs Denn – Because vs For/Because

Weil introduces a subordinate clause that gives the reason, and it sends the verb to the end of that clause. Use weil when you want to highlight the cause or when the reason is detailed. This structure is common in both spoken and written German.

Denn connects two main clauses and does not change word order, so the verb stays in second position. It feels more like a quick justification or an added explanation, and it maintains a natural, flowing tone. Use denn for short, straightforward reasons.

With weil, the clause is subordinate and the verb goes to the end; with denn, both clauses are main clauses and each keeps normal word order. This difference is key for sentence rhythm and clarity. Practice switching sentences to see how the meaning and flow change.

Use weil for clear, explicit reasons especially when the cause is important or when you want to embed the reason within the sentence. Use denn for quick, conversational asides and when you want to keep two main clauses balanced. Both can often be used interchangeably in speech, but weil is more flexible.

Remember: use weil to introduce a subordinate clause with the cause at the end, and use denn to connect two main clauses with normal word order. Choose weil for emphasis and detailed reasons, and denn for brief, natural-sounding justifications.