没有,这里没有.
但大多数用.如,it seems as if 引导的句子.
看下面虚拟用法：
一.辨别if 引导真实条件句和if引导的虚拟条件句的区别
If he has time,he will go with us.= Probably he has time and will go with us.
If he had time,he would go with us.=But in fact he has no time.
2.虚拟条件句中主句和从句的谓与动词构成形式如下表
if条件句中的谓与动词 主句的谓与动词
与现在的事实相反 1.行为动词用did 形式
2.be动词用were Should/would/could/ might + 动词原形
与过去的事实相反 had + done Should/would/could/ might + have + done
与将来的事实相反 1.行为动词用did
2.should + 动词原形
3.were to + 动词原形 Should/would/could/ might + 动词原形
表示命令或建议动词suggest,insist,propose,desire,demand,request,order,command 后的宾语从句中应使用虚拟 should +动词原形； should 不可用would 来替代; 主句所使用的动词时态不限.
二.suggest 为“建议去做…; 命令…”从句用should + do
为“ 说明； 暗示”,从句用过去时或过去完成时.
1) The doctor suggested that I should take the medicine three times a day.
2) The doctor suggested that my grandmother had caught a bad cold.
三.insist “坚持要去做…,坚持应该去做”,从句用should + do为“坚持表明,坚持说/解释”,从句用过去时或过去完成时.
四.虚拟语气也用于表语从句和主语从句中,表示间接的命令、要求、请求、建议、决定等,主句的主语通常是suggestion,proposal,request,order,idea 等.表语从句中的谓语动词是should +动词原型,should 可以省略.
11.在主语从句中,当从句用来表示惊奇、不相信、惋惜等,从句的谓语动词用需拟语气形式.其谓语动词时should + 动词原型,或should 省略.
