将来完成时

　　（shall）will+have+动词过去分词

　　before+将来时间或by+将来时间

　　before或by the time引导的现在时的从句

　　He will have worked for us.=He will work for us.

　　过去将来完成时

　　should / would have done sth.

　　He said that he would have worked for us.=He said that he would work for us.

　　现在完成进行时

　　基本与现在完成时相同，但是现在完成进行时只能表示仍然持续的概念

　　have/has been +-ing 分词

　　He has been working for us for ten years.=He has worked for us for ten years.

　　过去完成进行时

　　had been +-ing 分词

　　He said that he had been working for us for ten years.=He said that he had worked for us for ten years.