完成时态

perfect tenses───完成时态

perfect sense───完美的感觉

the perfect tense───完成时

perfect cadence───完全终止

perfect excuse───完美的借口

perfect gasses───完美气体

perfectiveness───完成时；完成式

perfect game───全胜的比赛

perfect gas───[物]理想气体；完美气体

He wants to know what situation calls for use of the perfect tense.───他想知道在什么情况下需要用完成时态。

Learn to express something with Past Perfect Tense.───学会描述过去所发生的事情.

Sum up the new vocabulary in this Unit, and Present Perfect Tense.───明确本单元所学的词汇和语法,增强他们正确操作的能力.

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。

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。