WHEN GRAMMAR FAILS

Perhaps the most easily recognizable grammatical error is the use of the word AIN'T. But consider the following three songs if their titles were grammatically correct.

AIN'T SHE SWEET ?
AIN'T WE GOT FUN ?
IT AIN'T ME BABE

Grammatically Correct:

IS SHE NOT SWEET ?
DO WE NOT HAVE FUN ?
IT IS NOT I, BABE

Credit: LA Times Crossword
Sylvia Bursztyn and Barry Tunick
SONGS MY GRAMMAR SANG TO ME