You are audi
Du bist schön.
I'm there when you are.
A) Du bist.... (singular/informal), B) Ihr seit.... (plural/informal) or C) Sie sind.... (singular/plural//formal) ....seltsam (strange) or komisch (funny).
The word schon means "already".Du bist schon hier? - You are already here?If the sentence has an adjective, it's just a phrase to describe how someone or something is.Du bist schon witzig! - You are really funny!Das ist schon komisch! - That is pretty weird!
Wie alt bist Du? means: how old are you?
"du bist doof" or "du bist blöd" or "du bist dämlich" are equivalent to "you are stupid"
Bist du = are you (informal, singular)
Du bist eine hübsche Frau, du bist süß. = You're a pretty woman, you're sweet.
bist du in Ordnung = are you okay
The question being asked is "Are you a boy or a girl".
du bist scharf = you are sharp