我知道这句话是虚拟语气,但为什么were后面用to built 呢

我知道这句话是虚拟语气,但为什么were后面用to built 呢 这句话是虚拟语气,但虚拟语气中不是不能出现was吗? I是单数,但为什么有If I were you 这样句式虚拟语气我也知道我问的是为什么是I是单数,但为什么有If I were you 这样句式 而不是If i was you 问个英语句子It is high time I were saying goodbye 是我说再见的时候了这句话中 虚拟语气用过去时我理解,但为什么还用进行时啊 为什么虚拟语气都是were 关于条件状语和虚拟语气的问题,请问下面两句话有什么区别If it rains tomorrow ,we will not go out.If it were to rain tomorrow ,we would not go out.我知道第二句是虚拟语气,但不知道在表达上有什么差别,什么 If he were free,he will ask me to tell stories.这句话书上说不是虚拟语气,是真实的,那为什么用were if i were to do it,i would do it in a different way.为什么填were to我知道是虚拟可是具体是虚拟语气里的哪一条语法点呢 It seemed that the world was at an end .这句话是虚拟语气吗?如果是虚拟语气，怎么was不用were？ if he were here ,that's very good 这句话是虚拟语气,可主句为什么不用would +动词原形呢 谁能帮忙跟我说说虚拟语气中的将来时,不知道为什么要加were to, Time is treated as if it were always something real这句话中为什么要用虚拟语气 it is about time虚拟语气if you really have been studied English for years,it is about time you --- able to write letters in English.A.should be B were正确答案是B,但A 为什么不可以啊?it is hight time是虚礼语气，这个我知道， I thought I could have done it 和 I thought I could do 有什么区别?知道could have done 是虚拟语气,但我觉得这2句话意思是一样的啊. she looked at me as if I were a stranger. 老师说这里用虚拟语气,可是怎么知道这是虚拟语气呢?我知道与现在事实相反可以用虚拟语气：从句谓语动词用过去式,主句用 would+动词原型；可是这里没有wou 初三虚拟语气,对将来的假设用一般现在时,快进.What would you do if you had a million dollars?这句话什么要用had,怎么不用have呀,我知道是虚拟语气,但也可以这样理解,如果你有100万美元,是对将来的假 he opened his lips as if he were to speak.1】如果这是虚拟语气的话,那这句话后半句的时态不是应该改为过去完成时吗?2】如果这部是虚拟语气,那么为什么这里用了were而不是was呢?个人认为这不是虚拟 She wishes she ____ to the theatre last night.A.went B.would go C.had gone D.were going这里为什么要选C呢?这是一道虚拟语气的题目,但是我看不出哪里是虚拟语气了?虚拟语气的定义清楚了，但是这里为什么不能