在含有虚拟条件句的复合句中,主句和从句的谓语都要用虚拟语气。现将虚拟条件从句和主句的动词形式列表如下:
从
句 主
句
与现在事实相反 动词的过去式(be的过去式一般用were) would/ should/ could/ might + 动词原形
与过去事实相反 had + 过去分词
would/ should/ could/ might + have + 过去分词
与将来事实相反
动词过去式,should + 动词原形,were to + 动词原形 would/ should/ could/ might + 动词原形
注: 主句中的should只用于I、we,但在美国英语中,should常被would代替;从句中的should
可用于各种人称。
l、表示与现在事实相反的假设和结果。如: If my brother were here, everything would be all right. 要是我哥哥在这儿 ,一切都没问题了。
2、表示与过去事实相反的假设和结果。如: If you had taken my advice,you wouldn't
(couldn’t) have failed in the exam. 如果你按照我的建议去做,你一定不会(不可能)考试不及格。
3、表示与将来事实可能相反的假设和结果。如: If it were Sunday tomorrow, I should
(would,could,might) go to see my grandmother. 如果明天是星期天,我就 (可能)去看望我奶
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