這是最被過於複雜化的時態之一，其實它的用法( had + P.P.過去分詞)很單純 – 如果要表達發生在過去的兩件事，先發生的事用過去完成式，後發生的用簡單過去式。
例如: The train had left when we arrived at the train station. (我們當時抵達車站前，火車已經開走了。) 這句子中的兩件事都在過去發生，但火車開走比較早發生，所以用過去完成式，抵達車站較晚發生，所以用過去式。
型式 : had + P.P. (過去分詞)
We were not able to get a hotel room because we had not booked in advance.
Tony knew Istanbul so well because he had visited the city several times.
When George passed away, he and Jenny had been married for nearly fifty years.
I was sorry when the factory closed. I had worked there since I moved to the town.
Luke and I were pleased to meet Henry. We hadn’t met him even though we had met his wife several times.
Terry wasn’t at home. He had gone swimming.
Maggie had tasted the milk and had decided it was bad, so she threw it away.
It was raining hard, but by the time the English class was over, the rain had stopped.
Jane was late. The teacher had already given a quiz when she got to the class.
I couldn’t recognize Laura when I ran into her yesterday. She had lost a great deal of weight.