YOU SAID:
And you did this for what?
INTO JAPANESE
そして、あなたは何のためにこれをやったのですか?
BACK INTO ENGLISH
And what did you do this for?
INTO JAPANESE
そして、あなたは何のためにこれをしましたか?
BACK INTO ENGLISH
And what did you do this for?
That didn't even make that much sense in English.