YOU SAID:
Wished he hadn't to do any of this
INTO JAPANESE
彼がこれを何もしなかったらよかったのに
BACK INTO ENGLISH
I wish he hadn't done this
INTO JAPANESE
彼がこれをしていなかったらよかったのに
BACK INTO ENGLISH
I wish he hadn't done this
You've done this before, haven't you.