mightn't or mayn't

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Joseph A

Senior Member
Hello everyone,
Is it okay to contract "may not" and "might not" to "mayn't" and "mightn't"? I know that contaction is mandatory in tag questions.
Eg. He may know it, mayn't he?
Eg. He might know it, mightn't he?
  • entangledbank

    Senior Member
    English - South-East England
    Mightn't is possible, but :cross:mayn't is never used in current English. You can't form that tag question. If you insisted on doing it, I think I'd have to say:

    He may know it, mightn't he?
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