英语时态一表通

补充：完成时态可用在下列结构中：
This(That, It)is(was )the first(second….)time+定语从句：
This(That, It)is(was) the only (last)+名词+定语从句；

This (This, It)is (was)+形容词最高级+名词+定语从句。

如果主句的谓语动词是一般现在时，从句的谓语动词动词通常用现在完成时；

如果主句谓语动词是一般过去时，从句的谓语动词通常用过去完成时。
例1：This is the first time(that )I’ve drunk Californian champagne.
这是我第一次喝加利福尼亚香槟酒。
例2：There was a knock at the door. It was the second time someone had interrupted me that evening.
有人敲门，这是当天晚上第二次有人打扰我了。
6.动词expect, hope, mean, intend, plan, suppose, wish, want, desire等用过去完成时，表示过去的希望，预期，意图或愿望等没有实现。
例1：I had meant to leave to on Monday, but have stayed on.
我本来打算星期一离开，但最终还是继续留下来了。
另外一种表示“过去想做而未做的事”的表达方式是：
7.was / were+ to have done sth. 和intended (expected, hoped, meant, planned, supposed, wished, wanted, desired)+ to have done sth.
例1：We were to have come yesterday, but we couldn’t.
我们本想昨天来的，但我们来不了。

例：1I mean to have told you about it, but I forgot to do so.
我本想告诉你这件事，但我忘掉了。
9.过去完成时常用于以下固定句型：
(1)hardly / scarcely / barely+过去完成时(倒装形式)+when +过去时
例1：Hardly had I arrived when I had a new problem to cope with.
我一到达就有新问题要处理。
(2) no sooner+过去完成时(倒装形式)+than +过去时。
例1：No sooner had the words been spoken than he realized that he should have remained silent.
这话刚说出口，他就意识到他本该保持沉默的。