请举例介绍英语虚拟语气的几种用法,不要大段剪贴网站上的解释,太迂腐的看不懂.另外,常说的if i were you,如果

1)在虚拟语气的从句中,动词'be'的过去时态一律用"were",不用was, 即在从句中be用were代替。 If I were you, I would go to look for him。 如果我是你,就会去找他。2)用 if you were meWhat would you do if you were me? 如果你是我,你会怎么做? 3）was主要用在It‘s time结构中,在该用was的时候不能用wereeg It’ time I was in bed 。 我该上床睡觉了。（这里不能用were）4）一些用法 ：a。 同现在事实相反的假设。句型 ： 条件从句 主句 一般过去时 should( would) +动词原形 If they were here, they would help you。b。 表示于过去事实相反的假设。句型： 条件从句 主句 过去完成时 should(would) have+ 过去分词 If she had worked harder, she would have succeeded。c。 表示对将来的假想 句型： 条件从句 主句 一般过去时 should+ 动词原形 were+ 不定式 would + 动词原形 should+ 动词原形 If you succeeded, everything would be all right。d It is (high) time that It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形,但should不可省略。 It is time that the children went to bed。 It is high time that the children should go to bed。 e It is demanded / necessary / a pity + that…结构中的主语从句的谓语动词要用should 加动词原形, should 可省略。其他还有一些小语法 这里就不一一列举了。希望能帮到你!