The word “ain’t” is a useful word in the English language – it can mean “am not”, “are not”, “is not”, “have not”, “has not”, “do not”, “does not” or “did not”. However, even though it’s versatile and easy to use, it still isn’t considered to be a proper grammatically-correct word, amirite?

I can't see it replacing "don't."
I hope you don't enter an insane asylum.
I hope you ain't enter an insane asylum.

It does't work for "Do not" "Does not" or "Did not"

Also, the word “ya’ll” is also useful, and I don’t understand why it’s shunned in the English language – it’s short and easy for “you all”, and sounds better than “you guys” or anything else when casually addressing a group of people.

For the record, I don’t say ya’ll, but I do use ain’t all the time, except obviously when typing assignments. Could just be because of my own accent though – I’ve never in my life pronounced the “g” part of any word ending in “ing”.

Also (I’m on a roll here), why did people stop saying “shite” (rhyming with night or sight)? When I was younger, half the shows on telly would say it, and now none of do. It’s not COMPLETELY interchangeable with “shit”, but I just reckon it sounds better.

Ain't is in the dictionary, defined as 'an improper form of isn't'

That's slang for ya.

Idiot.