YOU SAID:
I saw my sister tear up the letter.
INTO JAPANESE
私は妹が手紙を破るのを見た。
BACK INTO ENGLISH
I saw my sister tear up the letter.
INTO JAPANESE
私は妹が手紙を破るのを見た。
BACK INTO ENGLISH
I saw my sister tear up the letter.
You've done this before, haven't you.