関連ワード:  when to use have in tense    when to use has in past tense    when to use have and has in tense    when to use has in present perfect tense    when we use has in tense    when to use have in past tense    when to use have in present perfect tense    when to use have in past perfect tense    when to use have been tense    when to use has and have in past tense