你不知道的have, do, be 動詞！三種動詞兼用助動詞！

過去式：The computer crashed. · 過去式：I saw the movie. · 過去式：He went to Paris. · I have known Michelle ...

【核心動詞Have】 Have 完成式 · 前三大完成式是文法基礎 · 現在完成式：have V-pp · 過去完成式：had V-pp · 未來完成式：will have V-pp · 過去之...

型式: had + P.P. (過去分詞) ... We were not able to get a hotel room because we had not booked in advan...

have的过去式和过去分词都是had，但是具体应用有区别。 1. 表示过去用过去式：We had a meeting yesterday .(发生在过去) 2. 表示现在完成（助动词的 ...

have. 第三人稱單數(現在式). has. 過去式. had. 現在完成式. have had / has had ... 加過去分詞，構成完成時態）已經；曾經 have/has +p.p..