by the end of用什么时态

by the end of后面接过去时间时，句子的时态通常用过去时态——比如过去完成时、一般过去时、过去进行时等。有时by the end of...所表示时间并不修饰谓语动词，而是修饰句中的非谓语动词，此时与句子时态无关。

by the end of造句

The company had completed the project by the end of 1999.

到1999年底公司已完成了那个项目。

By the end of last month, he had been robbed at least three times.

到上月底，他已被抢了至少三次。

I’d had a bellyful of his family by the end of the weekend.

到周末的时候，我已经受够了他一家人。

By the end of the day we had sold over 2000 tickets.

那一天下来我们卖出了两千多张票。

By the end of that year Henry had collected more than a thousand foreign stamps.

到那年年底，亨利已收集了一千多张外国邮票。