student asking question

I know "ain't" is an informal expression. But what's the origin of it?

teacher

Native speaker’s answer

Rebecca

The phrase "ain't" started in the 1700s when it was written as "amn't" as a contraction for "am not" until the 1800s. That's when "amn't" developed into "ain't" and started being used and became a generic contraction for "is not," "has not," "are not," and so on. It was then ruled as improper English when it was used by certain dialects. Ex: I ain't seen anything like it before. Ex: They ain't going anywhere tonight.

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