samlee1995 發表於 5-1-2013 01:18:44

TENSE

不同TENSE點分幾時用..
最緊要係過去完成同現在完成果啲點分..

天使ｂ‥◆ 發表於 13-1-2013 18:51:44

I'm not good at explaining grammar things,maybe the following website can help you in distinguishing past perfect tense and present perfect tense.
http://www.englishspark.com/en/students/471-present-perfect-tense-vs-past-perfect-tense
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