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Grammar Whizz Unit 20 The Present Perfect Tense
20 The Present Perfect Tense
现在完成时式
英文语法小专家, 版权所有·侵权必究
The caretaker has already
locked the gate.
We have prepared lunch
for half an hour.
The present perfect tense is formed as follows:
构成现在完成时式的方式如下：
Auxiliary Verb ‘has’/‘have’ Past Participle
+
助动词“has”/“have” 过去分词
✐ has + seen = has seen
✐ have + forgotten = have forgotten
110 PB
020 Grammar Whizz_p110-114.indd 110 3/15/19 11:06 AM
