If he were here,he would help me now.If he asked me,I would go with him.请问以上句子主句各是什么时态,为什么?

1.I w if he comes here. Even if he were here,he would not be able to help us If my father were here he would be very happy,----?为什么用wouldn't he here is W( ) he said if he were here i would beat him 为什么不是 if he was here 不是过去式吗 am is was are才是were if he were here,everything would be all right.all would能换成should吗 9.If anybody comes here,he will be welcome,　疑问部分为什么是were there? If he were here,he would help me now.If he asked me,I would go with him.请问以上句子主句各是什么时态,为什么? He may come here if he ______ (be) free tomorrow. He may come here before five if he()(be)free. He mey come here if he _______( be )free if your father()here now ,he would tell you how to do it A WERE B WAS if he were to claim insanity...为什么用were 人教版,有关虚拟语气,填空题怎么填?if he ________ here,he ______ keep us out .because he's really a friendly man.A was;wouldn't B were' wouldn't C were; would 人教版,有关虚拟语气,填空题怎么填?if he ________ here,he ______ keep us out .because he's really a friendly man.A was;wouldn't B were' wouldn't C were; wouldn't He spoke as if he were a boss.为什么用were?急.为什么不是was？ he speaks as if he were an Englishman 这里的 were可以用 He would enjoy this if he were present为神马是were而不是was?