YOU SAID:
My but is bigger than yours
INTO JAPANESE
私のものがあなたのものよりも大きい
BACK INTO ENGLISH
Mine is bigger than yours
INTO JAPANESE
私のものはあなたよりも大きい
BACK INTO ENGLISH
Mine is bigger than you
INTO JAPANESE
私のものはあなたよりも大きい
BACK INTO ENGLISH
Mine is bigger than you
That didn't even make that much sense in English.