过去将来完成进行时
形式
should+have been+现在分词用于第一人称,而 would have
been+现在分词用于其他人称.
用法
I/we should have been working．
将来完成进行时与将来完成时的关系和现在完成进行时与现在完成时的关系一样.即在以下情况下可以用将来完成进行时而不用将来完成时：
1 动作本身就是连续的：
By the end of the month he will have been living／working／studying here for ten years．
到了月底他在这里居住／工作／学习就满十年了.
2 一种经常进行的动作被表示为连续的动作：
By the end of this month he will have been training horses／climbing mountains for twenty years．
到了这个月底他驯马／登山就满 20年了.
但是如果提到所驯马匹或所攀登的山峰的数目,或用任何方式把动作分割为一次又一次的动作,就必须用将来完成时：
By the end of the month he will have trained 600 horses／climbed 50 mountains．
到本月底,他驯服的马就有600匹／攀登的山峰就有50座了.
将来完成时用来表示在将来某一时间以前已经完成或一直持续的动作.经常与before+将来时间或by+将来时间连用,也可与before或by the time引导的现在时的从句连用.
1) 构成will / be going to do sth.
2) 概念
a. 状态完成：表示某事继续到将来某一时为止一直有的状态.
b. 动作完成：表示将来某一时或另一个将来的动作之前,已经完成的动作或一获得的经验.
They will have been married for 20 years by then.
You will have reached Shanghai by this time tomorrow.
将来完成时的构成
将来完成时的构成是由"shall/will + have +过去分词"构成的.
Before long he will have forgotten all about the matter.
不久他就会全然忘记这件事的.
He is somebody now. He will not have remembered his old classmates.
他现在是一个有身份的人了,他可能不会记得老同学了.
Will you have known Kevin for 10 years next month?
到下个月你认识凯文该有10年了吧?
将来完成时的用法
①表示在将来某一时间之前已完成的动作,并往往对将来某一时间产生影响.
We shall have learned 12 units by the end of this term.
到这个学期末,我们将学完12个单元.
By the time you get home I will have cleaned the house from top to bottom.
你到家之前我将把房子彻底打扫一遍.
②表示推测,相当于"must have done"结构.
You will have heard of this, I guess.
我想你已经听说过这件事了.
I am sure he will have got the information.
我相信他一定得到了这个信息