如果是错综虚拟语气呢
追答你高中还是大学?
如果从句和主句都表示过去的,那从句用had done,主句用would ,could,might,should+have done
如:If you had taken my advice,you would not have been late for the meeting yesterday.如果从句表示过去的,但主句表示现在的,从句用had done,主句用would ,could,might,should+do,如:If you had taken my advice,you would not be late for the meeting now.这种一般都有个时间,如果没有表示时间的词也可以从上下文看出。
高中
追答看懂了吗。。
追问。。没米。
追答英语水平怎么样。130分以上的话建议继续研究。130分以下的话建议会做题就行了不要深究。这在大学里都是一个需要深刻讨论的话题。可以多背背例句。比如说
If it had rained last night, the ground would be wet now. 要是昨晚下过雨的话,现在地面就会是湿的。
You would be much better now if you had taken my advice. 假若你当时听我的话,你现在就会好多了。
条件从句用 if I were…时,既可指现在也可指过去:
If I were you, I would stay. 我要是你我就会留下。
If I were you, I’d go to night school. 我要是你,我会上夜校。
If I were not busy, I would have come. 假若我不忙,我早就来了。
也可用 if I had been you也表示过去:
If I had been you,I’d have taken the job. 我要是你,我就接受那份工作了。
understand?