A2 Elementary
Nebensatz (subordinate clause)
Words like weil (because), dass (that), and wenn (if/when) start a subordinate clause. In this clause, the conjugated verb goes to the very end. A comma always separates it from the main clause. If the subordinate clause comes first, the main clause starts with the verb: Wenn es regnet, bleibe ich zu Hause.
Pattern
main clause, weil / dass / wenn + subject … verb (end)
Common mistake
Keeping the verb in position 2 after weil.
Ich bleibe zu Hause, weil ich bin krank.
Ich bleibe zu Hause, weil ich krank bin.