关于英语中的虚拟语气

虚拟种类
1. 条件虚拟
a）if从句—— 如果、倘若
例如：
 If I were you, I would do it just away.
 If it were not Saturday tomorrow.
b）suppose/supposing——假如
例如：
 Suppose (that) I were you.
 Supposing it were not Saturday tomorrow.
c）in case——万一
 例如：You should bring an umbrella with you, in case it were raining; of cause there’s no rain today.
d）as if —— 似乎，仿佛
 例如：He went upstairs as if he had been drunk, though he has not drunk any liquor.
2. 愿望虚拟
A. 名词从句
a）提出建议、发出命令、提出请求、表示见解等属于主语的愿望
宾语从句：I suggested that he (should常常省略) leave immediately.
表语从句：My suggestion is that he leave immediately.
主语从句：That he (should) leave immediately is my suggestion
同位语从句：My suggestion, that he leave immediately, has not been adopted.
B. 用在it is 句式中提出建议、发出命令、提出请求、表示见解愿望
It is important that he that he (shoul