In a scene of The War with Grandpa, when the child could not hide his mischief, he says "I might have did that".

While it doesn't sound fiercely strange to my ears, I couldn't recognize the grammar and structure of this expression.

What form of modal usage is this? Can you share more examples?

  • 8
    It is simply a childish error for "I might have done that". Commented Jul 18, 2022 at 7:01
  • 1
    I'd even expect I might of did that. Commented Jul 18, 2022 at 11:45
  • 1
    That's probly what the script said. In speech you can't tell the difference between might of and might have; that's why it's such a popular spelling -- people keep hearing it. Commented Jul 18, 2022 at 13:59
  • How old was the child, please? What language might a child of that age be expected to use? Commented Sep 7, 2022 at 21:32

1 Answer 1


I might did that

This was wrong the modal verb MIGHT HAVE does not work using a past verb

The kid made a wrong saying you might did that.

The correct way to use this modal verbs is:

personal noun + MIGHT HAVE + past participle

Might has no participles and no infinitive form. There is no past tense but might have, followed by a past participle, is used for talking about past possibilities: The explosion might have been caused by a gas leak.

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