Aint it??
What kind of language is your old man teaching you?? Do you live in a caravan or wot??
I said "aint it" once to my Mum and she gave me a slap and said.."Dont be common..It aint,aint!!!..
Its.... Isn`t it." Scared the .... outta me... Never did it again.
OK..Free English lesson over for the day...