if 虚拟语气为什么if it rains tomorrow 不用if it rained tomorrow,而if i were you为什么不用if i am you?那如果说如果某样东西不属于你应该用虚拟语气么?其实我有点想问，到底什么时候用虚拟语气，什么

请问这句用As if引导的虚拟语气从句有错吗谢谢It looked as if it's going to rain为什么主句是过去式 if it doesn't rain tomorrow we will have a picnic改为虚拟语气 If it doesn't rain,we will go fishing.这句话是虚拟语气吗? If it will rain...这句算是条件句还是虚拟语气? if的虚拟语气 关于英语中的虚拟语气,求解答!急!Q1: 句一：It looks as if it is going to rain. 句二：The apple tastes as if it is sour. 这两句是虚拟语气吗?如果不是,请问为什么不用虚拟语气；如果是,请问为什 If it ---(rain)tomorrow,our picnic would be put off.是虚拟语气吗?风唱梵音 虚拟语气和if条件状语从句的区别比如说.I'll go there with you if it doesn't rain tomorrow.(为什么这里要用主将从现!)但是.If it should rain tomorrow,I would stay at home.（为什么这里又虚拟了?） If it should snow tomorrow,they couldn’t go out.这是虚拟语气吗?为什么? if 从句和虚拟语气 as if 的虚拟语气? would appreciate it if句型必须用虚拟语气吗? it sounds as if后面必须用虚拟语气吗 虚拟语气 if You could have done other career What would it have been 为什么不是 if ..Had done 句 虚拟语气的现在时和将来时今天学习虚拟语气 学了将来时态和现在时态.但是有一个地方没弄明白.如下：虚拟语气现在时：if it rains tomorrow,we will cancel the picnic虚拟语气将来时：if it should rain 虚拟语气中为什么要用if I were you if i were you 为什么用虚拟语气 if引导的虚拟语气可以用will 为什么?