英语语法虚拟语气讲解
英语语法有词类也有句型，我们现在来看看虚拟语气的用法。下面是小编给大家整理的英语语法虚拟语气讲解，供大家参阅!
英语语法虚拟语气讲解：if only后的句子用虚拟语气if only 与I wish一样，也用于表示与事实相反的愿望，其后所虚拟语气的时态与wish 后所接时态的情况相同：
If only she had had more courage! 她再勇敢一些就好了。
If only it would stop raining! 雨要是停了就好了。
If only he didnt drive so fast. 但愿他车没开得那么快。
If only I were [was] better looking. 要是我长得漂亮些就好了。
If only I had listened to my parents! 我要是当时听了父母的话就好了。
If only she would go with me! 她要是愿意和我一道去就好了!
【友情提示】if only 通常独立使用，没有主句。
英语语法虚拟语气讲解：would rather后的句子用虚拟语气would rather后接句子时，句子谓语习惯上要用虚拟语气，具体用法为：
1.一般过去时表示现在或将来的愿望
Id rather you went tomorrow (now). 我宁愿你明天(现在)去。
Id rather you came next Saturday. 我宁愿你下星期六来。
Id rather you were happy. 我愿你快乐。
Id rather she sat next to me. 我宁愿她挨着我坐。
Id rather Jack left on an earlier train. 我宁愿杰克乘前一班火车走。
You always go without me and ld rather you didnt. 你总是不带我去，我可不愿意你这样。
Shall I open the window? Id rather you didnt. 我要不要把窗子打开? 我看不要打开好。
2. 用过去完成时表过去的愿望
Id rather you hadnt said it. 我真希望你没有这样说过。
Id rather you hadnt done that. 我宁愿你没这样做。
ld rather you had been / hadnt been present。我(宁) 愿你当时在场/ 不在场。
ld rather he had told / hadnt told me about it 我(宁) 愿他告诉了/ 未告诉我这件事。
Katie went by car and Id rather she hadnt. 凯蒂是坐汽车去的，我宁愿地不坐汽车去。
英语语法虚拟语气讲解：虚拟语气用在条件状语从句中虚拟语气是一种特殊的动词形式，表示所说的话不是一个事实，而只是一种假设，愿望，建议，怀疑，猜测或不大可能实现的空想。
I.虚拟语气用在条件状语从句中
虚拟语气用在条件状语从句中，通常从句由连词if 引导。
1.与现在事实相反的虚拟条件句
条件状语从句主句
If +主语+动词过去式主语+ would, should, could, might+原形动词
(be的过去式用were)
例如：
If I feared death, I wouldnt be a communist.
(刘胡兰)怕死就不做共产党员。
If there were no air, we couldnt live.
如果没有空气，我们就不能生活。
Example:
I would ask George to lend us the money if I ______ him.
A. had known
B. knew
C. have known
D. know
I _____ it to him if I thought he would understand.
A. shall explain
B. will explain
C. would explain
D. explain
2.与过去事实相反的虚拟条件句
构成
条件状语从句主句
If + 主语+ 动词过去完成式主语+ would, should, could, might+have + 过去分词
例如：
If you had come a few minutes earlier, you would have met him.
如果你早来几分钟，你就会碰上他。
If there had been no air in the tube, the result of the experiment would have been more accurate.
如果试管中没有空气，实验结果就会更精确。
Example:
If you hadnt gone with Tom to the party last night, _______.
A. you would meet John already
B. you wont have missed John
C. you will have met John
D. you would have met John
3.与将来事实相反的虚拟条件句
构成
条件状语从句主句
If + 主语+ should +原形动词主语+would,should,could,might或were+不定式+原形动词例如：
If he were to come tomorrow, things would be easier.
假如他明天会来，事情就容易办了。
If the sand should be broken up, it would give out much energy.
如果沙子能被分解，它会释放出大量的能量。
注：在表示与将来事实相反的虚拟条件句中，从句中的should
