英语六级完成时态语法精讲

英语六级完成时态语法精讲

时态

1)现在完成进行时态 : 动作或状态从过去某时开始,继续到现在,可能继续下去,也可能刚刚结束.

Ive been writing letters for an hour.

Ive been sitting in the garden.

2)过去完成进行时: 过去某个时刻以前一直在进行的.动作

Id been working for some time when he called.

We had been waiting for her for two hours by the time she came.

3)将来完成进行时: 将来某个时刻以前一直在进行的动作.

By next summer, he will have been working here for twenty years.

In another months time shell have been studying here for three years.

4)将来完成时: 将来某时会业已发生的事.

I shall have finished this one before lunch.

Theyll have hit the years target by the end of October.

语态

可以有两种被动结构的类型,例如:

He was said to be jealous of her success.

It was said that he was jealous of her success.

能同时适用于上述两个句型的主动词通常都是表示估计,相信等意义的动词,常见的有assume, believe, expect, fear, feel, know, presume, report, say, suppose, understand等.