perfect tense
US /ˈpɜːr.fɪkt tens/
UK /ˈpɜːr.fɪkt tens/
1.
完成时, 现在完成时, 过去完成时
a verb tense that expresses an action or state that occurred at an indefinite time in the past or began in the past and continues to the present
:
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The sentence 'I have eaten' is an example of the present perfect tense.
句子“I have eaten”是现在完成时的一个例子。
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She had already finished her homework when I arrived, which is an example of the past perfect tense.
我到的时候她已经做完作业了，这是过去完成时的一个例子。