【間違いやすい英語 37】I don't have met him before.

(彼に会ったことがない)はどこが不自然でしょうか。

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A) I haven't met him before.

(「会った」という経験を表すときにはhave＋過去分詞の現在完了形を使います。)

More examples:

x I don't seen her before.

o I haven't seen her before.

x I don't read it before.

o i haven't read it before.