Comma before subordinate clause
One of 97 rules YabLab tracks in German writing.
Ich weiß dass du kommst.
Ich weiß, dass du kommst.
Comma before subordinate clause
Punctuation marks the boundaries and relationships that speech expresses through pauses and intonation. Each mark must match the sentence structure.
- Structure first
- Identify clauses and phrases A comma, period or other mark follows the grammatical boundary, not the length of the sentence.
- Meaning
- Choose the relationship Different marks can signal continuation, separation, explanation or interruption.
- Read aloud
- Use sound only as a final check A pause can confirm a boundary, but grammar decides whether punctuation is required.
What YabLab does with this mistake
- Catches it right as you write — comments, email, docs.
- Explains the why in your language, not just the fix.
- Helps you practice it until it is gone for good.