YOU SAID:

You've done this, haven't you

INTO JAPANESE

あなたはこれをやったことがありますか？

BACK INTO ENGLISH

Have you done this?

INTO JAPANESE

なんでこんな事したの?

BACK INTO ENGLISH

Why have you done this?

INTO JAPANESE

なんでこんな事したの?

BACK INTO ENGLISH

Why have you done this?