Why do we use “aren’t” for rhetorical questions and tag endings regarding “I”?


I know we don’t have a contracted way to say “am I not?” but I just don’t understand the decision of using “are” over “is” or the uncontracted version of such questions.

In: 1

Linguistic drift.

As it became more and more common to use the contradiction as part of the question, asking “am I not” sounded excessively formal. So people came up with a new way to say it casually.

In Southern United States English it is not a problem whatsoever because we just use “ain’t I?”.