过去完成时是英语中一种用来描述过去某个时间之前的动作或状态的时态。在这个时态中,常见动词会发生变化,下面列出一些常见的过去完成时动词。
have + 动词过去分词:如 had gone,had eaten,had seen等等。
had + 动词原形:如 had been,had done,had lived等等。
had + been + 现在分词:如 had been studying,had been working,had been waiting等等。
had + been + 动词过去分词:如 had been watching,had been walking,had been talking等等。
以上是过去完成时中最常见的动词形式,需要注意的是,过去完成时常常与其他时态一起使用,比如过去完成时和过去简单时同时出现时,通常用于描述先后顺序,如:
I had finished my homework before he arrived.(他到达之前我已经完成了作业。)
She had already left by the time we got to the restaurant.(我们到达那家餐厅的时候,她已经离开了。)
以上是关于过去完成时的常见动词以及使用方法的介绍。希望对大家学习英语有所帮助。