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

用 If I were he / him 虚拟语态if i were rich,i would buy a downtown house.为什么用were 虚拟语气If I were U 是if i was you 还是 if i were you? if i were her还是if i were she If i were U. if i were you if i were a If I were a teacher要虚拟语气 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 i were girl的虚拟语气作文