YOU SAID:
john stop being an idiot
INTO JAPANESE
ジョンは馬鹿になるのを止める
BACK INTO ENGLISH
John stops being a fool
INTO JAPANESE
ジョンは愚か者ではなくなります
BACK INTO ENGLISH
John is no longer a fool
INTO JAPANESE
ジョンはもはやばかではない
BACK INTO ENGLISH
John is no longer a fool
You've done this before, haven't you.