请问虚拟语态应是“If I were he”还是“If I were him”?

请问虚拟语态应是“If I were he”还是“If I were him”? 虚拟语态if i were rich,i would buy a downtown house.为什么用were If I ()a singer,I would be rich.虚拟语态的am是不是该用were? 如何看英语的虚拟的语句像if i were a BOY 就是虚拟语态 .应该怎么判断虚拟句呢 、 请问这句虚拟语气：which school should I go to if i were to study abroad next year?SHOULD应理解为“会,可能”,还是“应该”?或者说,SHOULD在IF虚拟条件句中能表示“应该”的意思吗? 你能帮我写一篇作文么?if i were a teacher 要用被动语态 和虚拟语气~ “如果以前做了某事” 虚拟语态是If I would have done... 是if i was you 还是 if i were you?那是所有虚拟语气 am 都变成 were 么? if that had been me/if I were you这都是虚拟语态吗?有什么区别用法吗,为什么用过去完成时? 有关被动语态It has been estimated that if the bridge were packed with cars````````~这里用were不用was是因为什么虚拟吗?还是什么别的? If I were a teacher要虚拟语气求作文。。。 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 ___the expence, I ____ a round -the -world tourA if it hadn't been for, would have takenB were it not, would take 答案是A 请问这里为什么是用过去虚拟 而不是将来虚拟B呢? If I were you ,I would go at once如果不分什么是主句 什么是从句那If I were you是虚拟状语吗 If I were a teacher被动语态这是月考的作文请其他人别抄 请问：if从句中虚拟语气的was是不是用were?例如,一个女生,她的网名是 ：“If I were a boy” 她说她当然不可能是男孩,所以是虚拟语气,was 应用 were 替代,我们争了好久..求高手赐教, 碧昂斯有首歌名叫《if i were a boy》,是不是不合语法?是不是应该用was,这里为什么用were,是不是有什么说法?是IF引导的虚拟都用were，还是所有的虚拟都用were?