문법 틀린거 있는지 봐주세요ㅠㅠㅠㅠ 급해요

If he were not fight for one is country the conutry would fail to exist

가정법 과거 문장인데 문법적으로 틀린거 있는지 좀 봐주세요ㅠㅜ

=>If he didn't fight for his country, the conutry would fail to exist.

=>fight가 일반동사이기 떄문에 , didn't fight(과거형)으로 써야 합니다