YOU SAID:
what if you didn't do that
INTO JAPANESE
もしあなたがそれをしなかったら
BACK INTO ENGLISH
If you didn't do it
INTO JAPANESE
やってないだろ
BACK INTO ENGLISH
You didn't do it.
INTO JAPANESE
やってないだろ
BACK INTO ENGLISH
You didn't do it.
That didn't even make that much sense in English.