past tense與past perfect tense的使用

Bayleef

past tense幾時用  past perfect幾時用

zubat

簡單來說:
past perfect tense不會單獨存在 (reported speech除外, 不認識的先不要理會)
past perfect是用來表示比past tense發生得更早的事情, 所以用past perfect的時候多半都會見到另一句用past tense的
樓上的例子有夠清楚的


原諒我的中文比較突兀 (有歐化的味道啊XD?)
因為我慣左用英文去表達關於English grammar的概念 @@"

Ivanhy92

past tense幾時用  past perfect幾時用
Bayleef 發表於 12-5-2009 23:50

                               
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Usage 1

設B一直在現場; A剛剛到場; A想問Tom究竟在嗎.

Past tense
A: Was Tom there when you arrived?
B: Yes, but he left soon afterwards.我來到現場時Tom還在,但過了一會便走了.

Past perfect tense
A: Was Tom there when you arrived?
B: No, he had already left.在我未到場時Tom已經走了.

Usage 2 - 強調兩件事的先後次序

事件A: 關燈
事件B: 睡覺

1. Before I went to bed, I had switched off the light.
在睡覺前我已經關掉了燈.
2. After I had switched off the light, I went to bed.
在關掉了燈後我便睡覺.

建議樓主購買
English Grammar in Use 3rd Edition(藍色封面,Intermediate)- by Raymond Murphy
講解頗為清晰,英文亦較淺白

或者

English Grammar in Use 2nd Edition(綠色封面,Advanced)- by Martin Hewings
較深入的Grammar Items

兩者出版社為Cambridge University

相信能解答樓主問題