过去完成时

分类：时态

定义

表示在过去某一时间或动作之前已经完成的动作，即’过去的过去’。

结构

had + 过去分词

时间标志词

by the time, before, after, when

例句

1. He had left before I arrived.
2. By the end of last year, I had worked here for 5 years.

相关术语

• 完成时态
• 现在完成时
• 过去完成时被动语态