Ich bleibe zu Hause, weil ich krank bin.
English: I stay at home because I am sick.
Kausalsätze in German are subordinate clauses that give the reason or cause for something. They answer the question 'Why?' and usually start with words like 'weil', 'da', or 'denn'.
Use Kausalsätze in German when you want to explain why something happens or give a reason for an action or situation.
Ich bleibe zu Hause, weil ich krank bin.
English: I stay at home because I am sick.
Da es regnet, nehmen wir den Bus.
English: Since it is raining, we take the bus.
Ich kann nicht kommen, denn ich habe keine Zeit.
English: I can't come because I have no time.
Sie lernt viel, weil sie gute Noten will.
English: She studies a lot because she wants good grades.