had read是什么时态?

had read是什么时态?
had read是什么时态?

had read是什么时态?
这是过去完成时,其结构是：主语+had+V-ed(动词的过去分词）例：She had gone to Pairs when I got to her home.
had read 中的read 就是过去分词,只是写法和原型一样.

过去完成时

过去完成时。

过去完成时