Ich bleibe zu Hause, weil es regnet.
English: I stay at home because it is raining.
In German, the word order in subordinate clauses (Nebensätze) is different from main clauses. The conjugated verb goes to the end of the clause.
Use this word order in German when you want to connect two ideas and one depends on the other. Subordinate clauses often start with words like 'weil' (because), 'dass' (that), or 'wenn' (if/when).
Ich bleibe zu Hause, weil es regnet.
English: I stay at home because it is raining.
Sie sagt, dass sie morgen kommt.
English: She says that she is coming tomorrow.
Wenn ich Zeit habe, besuche ich dich.
English: If I have time, I visit you.
Er glaubt, dass du das schaffst.
English: He believes that you can do it.