Ich weiß nicht, warum ich sie liebe. - I don't know why I love her.Ich weiß nicht, warum ich Sie liebe. - I don't know why I love you. (using the formal you should be a rare occasion, you don't usually confess your love for someone you are not close enough to address with du)
warum ja ich mache makes no sense but translates as why yes I make/do
nicht is not in english
sündigt nicht = don't sin
Spring' nicht (full springe nicht) means don't jump
"That is not" is "das ist nicht" in English.
Ich will nicht translates as I don't want to.
Hallo, ich bin... Wollen wir kämpfen = Hello, my name is .... Shall we fight
Warum, meine Liebe? - Why, my dear?
Warum nur Freunde translates as why only friends
Do you want......
Don't go in the city.