1) 在told, said, knew, heard, thought等动词后的宾语从句种。
例如:She said (that)she had never been to Paris。她告诉我她曾去过巴黎。
2) 在过去不同时间发生的两个动作中,发生在先,用过去完成时;发生在后,用一般过去时。
例如:When the police arrived, the thieves had run away。警察到达时,小偷们早就跑了。
3) 表示意向的动词,如hope, wish, expect, think, intend, mean,
suppose等,用过去完成时表示"原本…,未能…"。
例如:We had hoped that you would come, but you didn‘t。那时我们希望你能来,但是你没有来。
注意:had hardly… when。。。刚。。。。。。就。。。。。。。
例如:I had hardly opened the door when I he hit me。我刚打开门,他就打了我。
had no sooner…than 刚…… 就……。
例如:He had no sooner bought the car than he sold it。他刚买了这辆车,转眼又卖了。