下面这句话是虚拟语气吗popular words are those which we should know and use even if we could not read or write

下面这句话是虚拟语气吗popular words are those which we should know and use even if we could not read or write 这句话是虚拟语气,但虚拟语气中不是不能出现was吗? 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？ I don't know when you could see it是虚拟语气吗这句话包含的语法是虚拟语气,还是宾语从句 i cant say with any certainty when i shall be back next week.这句话是不是虚拟语气?这是虚拟语气加上倒装吗? one should be honest,should one/you?这句话是虚拟语气吗?原句是什么?反义疑问句算虚拟语气吗? 没从句的虚拟语气用法what if someone offered me a cigarette?中为什么要用offered而不用offer?这句话是虚拟语气吗? whatever he did,I would not change my mind.这句话是虚拟语气吗? If it doesn't rain,we will go fishing.这句话是虚拟语气吗? 什么是虚拟语气,怎么判断这句话是不是虚拟? He read the letter carefully in order that he should not miss a word这句话是虚拟语气,他虚拟在哪里啊,那句话虚拟了, 这用的是虚拟语气嘛? would rather 是用语虚拟语气吗? 英语翻译是虚拟预语气吗？ had better 是虚拟语气吗 英语句子分析,是虚拟语气吗?NASA couldn't have asked for a more perfect launch.这里的could是什么成分?起什么作用?这句话是虚拟语气吗?为什么couldn't后面加了现在完成时? 请问这句话是不是虚拟语气呢?Obviously,it is high time that we took some effective measures to solve it.是省略should的虚拟语气吗?可是 took 怎么不用原型呢? 我知道这句话是虚拟语气,但为什么were后面用to built 呢