‘Isn’t’ Isn’t ‘Ain’t’, Nor Is ‘Aren’t’

There used to be an advertisement in Australia that contained the statement, “Oils ain’t oils!”.

Now, I know little about oils, but I do know that ‘ain’t’ should not be a member of a child’s vocabulary — or an adult’s for that matter!

It is such a pity that so many supposedly learned individuals employ its usage, virtually without exception.

‘Isn’t’ is used when the subject is singular (one).

Example: Ralph (singular) isn’t coming.

‘Aren’t’ is used when the subject is plural (more than one).

Example: They (plural) aren’t coming.

Betty and James aren’t related.