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may; might; perhaps; may be; possibly
明日あすは雨あめかもしれません。
It might rain tomorrow.
彼女かのじょは来こないかもしれませんね。
She might not come, you know.
彼かれの話はなしは本当ほんとうかもしれませんよ。
His story might be true, you know.