2.与suggest ， order， demand ， propose， command， request， desire，insist等动词相对应的名词suggestion， order， demand ， proposal 等后的表语从句或同位语从句中要使用虚拟语气。如：

　　The general sent the order that the battle（should） be held on untilthe complete failure of the enemy.

　　My proposal is that we（should） set a deadline for handing in the plan.

　　3.在It is/was suggested （ordered ， demanded ， proposed ， etc. ） 结构以及necessary ， essential， important， strange， natural等形容词后的主语从句中要使用虚拟语气。如：

　　It's requested that we （should） keep the stability of the society for the people's peaceful life.

　　It is necessary that the badly wounded man（should） be treated immediately.

　　二、过去时态类

　　英语中，还有一些词或短语后接的从句或句子，也要使用虚拟语气，虚拟语气是通过句中的谓语使用过去的某种时态（如：一般过去时、过去完成时等）来体现的。

　　1. wish ， would rather 后的宾语从句。如：

　　He wished he had never been involved in such affairs.

　　I would rather you could teach me again.

　　2. as if， as though引导的从句。如：

　　The little boy knows so many things as if he was a man.

　　He acted as usual as though nothing had happened.

　　3.由if only （要是……，那该多好啊！）引导的惊叹句。如：

　　If only I had passed the test ！

　　If only it stopped raining！

　　4. It is（about/high） time 后的定语从句。如：

　　It is time we went out for a walk.

　　It was high time they had begun to prepare the experiment.

　　虚拟语气的其它用法

　　在英语中，一些表示建议、请求、劝告、愿望、祈祷、祝福或诅咒的句子，也需要使用虚拟语气。如：

　　Would you mind smoking here ？

　　May you be lucky！

　　Long live the people of China ！

　　God save me.