帮忙造过去完成时的英语句子要用到一些时间状语从句,如：before,when,after等

before i came in,he had already gone.
he was told that he had been looking for by the police after stealing the car.
i had arrived at home before it rained.
等等诸如此类吧，只要发生在过去的过去，就可以。when的前后时态要保持一致，所以不可能有过去完成时。

By nine o’clock last night,we had got 200 pictures from the spaceship.
I had been at the bus stop for 20 minutes when a bus finally came.
He said he had worked in that factory since 1949.
Mr.Smith died yesterday.He had been a good friend of mine.
I didn’t know a thing about the verbs,for I had not studied my lesson.
I returned the book that I had borrowed.
She found the key that she had lost.
He said that he had known her well.
I thought I had sent the letter a week before.
When I woke up,it had already stopped raining.
She didn’t go to bed until she had finished he work.
After he arrived in England,Marx worked hard to improve his English.
They had wanted to help but could not get there in time.
Hardly had he began to speak when the audience interrupted him.
It was the third time that he had been out of work that year.