肯定回答：Yes,主语+had

　　否定回答：No,主语+hadn't

　　④特殊疑问句：特殊疑问词+一般疑问句（had+主语+过去分词+其他）

　　语法判定:

　　（ 1 ） by + 过去的时间点。如：

　　I had finished reading the novel by nine o'clock last night.

　　（ 2 ） by the end of + 过去的时间点。如：

　　We had learnt over two thousand English words by the end of last term.

　　（ 3 ） before + 过去的时间点。如：

　　They had planted six hundred trees before last Wednesday.

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.

将来完成进行时

　　主语+ shall/will have been doing

　　He will have been working for us.=He will work for us.