future perfect tense 将来完成时 ; 未来完成时 ; 将来完成式 ; 完成式
Perfect Tense 完成式 ; 完成时态 ; 完成时
past future perfect tense 过去将来完成时 ; 去将来完成时 ; 过去未来完成时
the future perfect tense 将来完成时
the past future perfect tense 过去将来完成时 ; 将来完成时 ; 去将来完成时
The Perfect Tense 完成时态 ; 完成时 ; 完成式
progressive perfect tense 完成进行性
past perfect tense 去完成时 ; 过去完成时 ; 现在完成时
'I have eaten' is the present perfect tense of the verb 'to eat', 'I had eaten' is the past perfect and 'I will have eaten' is the future perfect.
I have eaten是动词eat的现在完成时；I had eaten是过去完成时；I will have eaten是将来完成时。
When you ask about something that started in the past but continues to the present time, you use the Present Perfect tense, e.g.: I’ve been there for 5 years / I’ve been there for 5 years.
当你谈论在过去开始但是一直持续到现在的某事时，用现在完成时态，例如：I’ve been there for 5 years/我在那里已经5年了。
The present and past perfect tenses both belong to the perfect tense.
现在完成时和过去完成时都属于完成时态。
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