Do you ever say "ain't"?
I ain't lying.
Alex, at the moment, the 'yes' crew are winning.
I use it ironically.
I use it when I sing the song "Ain't got no mountain high enough...." (hehehe)
It a common word in the south where I live. It's use is more slang than correct english though.
It's all english, ain't it? :P