"By the way, you ...."
anata WA eg. you are stupid - anata WA bakka desu you are cute - anata WA kawaii desu you are a cat - anata WA neko desu
It means "you are me".
anata WA kangei + your welcome not so sure about the "suite iru" part
"You are a prostitute/hooker"
Anata WA debu.
"You are always pretty."
simply, Desu. eg. who are you? - anata wa dare desu ka? where are you? - anata wa doko desu ka? are you ill? - anata wa byouki desu ka? are they new? - arera wa atarashii desu ka? ect. Desu means: Are, Is, and am.
Tsumaranai na, Anata wa...
あなたは醜いです (anata wa minikui desu) means 'you are ugly'.
Anata WA gakkō ni iru
Answer is: Anata WA Inu Watashi Desu.
Anata wa - あなたは