YOU SAID:
What you want to do with her
INTO JAPANESE
彼女と何をしたいのか
BACK INTO ENGLISH
What do you want to do with her
INTO JAPANESE
何をしたいですか
BACK INTO ENGLISH
What do you want to do?
INTO JAPANESE
あなたは何がしたいのですか。
BACK INTO ENGLISH
What do you want to do?
That didn't even make that much sense in English.