before after引导过去完成时句子（after和before引导的句子）

如果用了after, before 这样明确表示时间的连词,说明动作之间紧密相连,一件接着一件；或者说,在同一时间里,连续做的几件事.因此,一般不用过去完成时.例如：
After I had done my work, I played tennis.
I saw your father before I went.
I reached the station, the bell rang and the train started.