Past Perfect Tense（過去完成式）完整教學｜用法＋例句、常見錯誤＋Exercises

Past perfect tense（過去完成式）最核心概念講「過去的過去」。當你有兩件都發生喺過去嘅事，而你想清楚表示邊件先發生，就用 past perfect： had + past participle 接下來等AfterSchool用最常考嘅規則、連接詞（before/after/by the time）同練習，幫你一次過搞掂Past perfect tense！ 1) Past Perfect 係咩？ 你可以當佢係「時間排序工具」！ 1.1 表示較早發生的過去事件（過去的過去） When I arrived, the class had started. （我到達之前，堂已經開始咗） She was nervous because she had forgotten her notes. （她之前忘記帶筆記，所以緊張） 1.2 配合時間連接詞，清楚交代先後 最常見：by the time / before / after / when。 By the time we got to the station, the train had left. I had finished my homework before dinner. 2) Past Perfect 公式及基本句型 過去完成式一律用 had（無論人稱）！ 2.1 肯定句 Subject+had+past participle (p.p.) Subject+had+past participle (p.p.) I had eaten. They had gone home. He had done his work. 2.2 否定句 Subject+had not+p.p. Subject+had not+p.p. She hadn’t seen the email. We hadn’t met before. 2.3 疑問句（Yes/No） Had+subject+p.p.? Had+subject+p.p.? Had you finished when I called? Had they left already? 2.4 Wh- 問句 Wh-+had+subject+p.p.? Wh-+had+subject+p.p.? Why had he left so early? What had she said? 3) Past Perfect 必考連接詞：before / after / by the time / when 3.1 by the time + past simple（主句多用 past perfect） 結構通常係： By the time +（較遲事件：past simple）,（較早事件：past perfect） By the time I got home, my parents had cooked dinner. （我到家（遲），父母已煮好（早）） 3.2 before：通常「早」嗰件用 past perfect I had locked the door before I left.（離開前已鎖門） 3.3 after：可以用 past simple，但用 past perfect 更清楚 After she had finished the report, she sent it to her boss. （口語/簡化都常見） After she finished the report, she sent it. 考試寫作想清晰：用 past perfect 更穩陣！ 3.4 when：常見句型（早：past perfect；遲：past simple） When the teacher came in, the students had already sat down.（老師入嚟（遲），學生早已坐低（早）） 4) Past Perfect vs Past Simple（點分？） 4.1 只講一件過去事 → Past simple 已夠 I lost my keys yesterday. 4.2 兩件過去事，想清楚表示「邊件先」→ Past perfect I realised I had lost my keys.（先：丟咗鎖匙；後：先至發現） 4.3 有明顯時間先後字眼（e.g. before/by the time）→ 常用 past perfect By the time we arrived, the movie had started. 5) Past Perfect 常見錯誤 5.1 誤用「had + 過去式」當 p.p. ❌ had went ✅ had gone ❌ had did ✅ had done 5.2 兩邊都用 past perfect（通常冇必要） ❌ By the time I had arrived, the train had left. ✅ By the time I arrived, the train had left. 一般規則：較遲嗰件用 past simple，較早嗰件用 past perfect。 5.3 already / just / ever 放位唔自然 常見自然位置： had already + p.p. had just + p.p. She had already finished. They had just arrived. 6) Past Perfect 練習題（Exercises）— 附答案 A) Fill in the blanks（用 past perfect：had + p.p.） When I arrived, the meeting ______ (start). She was tired because she ______ (not sleep) well. By the time we got to the cinema, the movie ______ (begin). I realised I ______ (leave) my wallet at home. B) Choose the correct form（past perfect / past simple） After he ______ (finish / had finished) dinner, he went out. By the time the teacher came in, the students ______ (were / had been) quiet. I ______ (didn’t go / hadn’t gone) to that restaurant before last week. C) Rewrite（用 past perfect 改寫，令先後更清楚） I ate breakfast. Then I left home. The train left. We arrived at the station. ✅ Answers（答案） Part A had started hadn’t slept had begun had left Part B had finished had been hadn’t gone Part C（示範答案，多個版本都可） I had eaten breakfast before I left home. The train had left by the time we arrived at the station. 7) 何時要用 Past Perfect？ 兩件都喺過去發生，但要講清楚先後 → 用 past perfect 常見提示：by the time, before, after, when, already, just 基本句型：had+p.p.had+p.p. 8) Past Perfect FAQ（常見問題） 8.1 Past perfect 一定要有兩件事先用？ 最常見係兩件事，但有時一句都得：例如你想強調「到某一刻之前已經完成」。 She was happy because she had passed the test. 8.2 「before」句係咪一定要 past perfect？ 唔一定；如果語境已清楚先後，用 past simple 都得。但考試寫作要清晰、避免歧義，用 past perfect 通常更穩。 8.3 Past perfect 同 present perfect 有咩分別？ Present perfect：由過去到而家有關連 Past perfect：由過去到另一個過去時間點有關連（過去的過去）

Past Perfect Tense（過去完成式）完整教學｜用法＋例句、常見錯誤＋Exercises

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