YOU SAID:
Youve done this before havent you?
INTO JAPANESE
あなたはあなたがいない前にこれをしましたか?
BACK INTO ENGLISH
Did you do this before you weren't there?
INTO JAPANESE
あなたがそこにいない前にあなたはこれをしましたか?
BACK INTO ENGLISH
Did you do this before you weren't there?
You've done this before, haven't you.