为什么是If I were your father ,而不是I was your father?am的过去式不是was吗?还有，可以帮我讲讲虚拟语气的语法吗？我只知道IF主将从现唉，这应该也是虚拟语气吧？

if i were a 为什么if i were a boy?应该是 i was为什么是were IF I WAS YOUR VAMPIRE关于这首歌的歌名为什么是I WAS而不是I WERE呢? 为什么是if I was your boyfriend而不是if I were your boyfriend?按理说虚拟语气应该都是用were,永远都不会出现was .那为什么JB的《Boyfriend》里用的是if I was your boyfriend? if i were invited tonight ,i would go to the dinner party 为什么用 WERE这句话为什么是IF I WERE而不是 IF I WAS 为什么是if i were a boy不是if i was a boy? 为什么是if only I were you 而不是if only i was you If I Were In Your Shoes 歌词 if i were a boy为什么是were.那可以举几个例子吗 If I were you 中为什么是were而不是am或was 如果我是你用英语怎么说?为什么是IF I WERE YOU而不是IF I WAS YOU哪? 为什么是If I were a bird?后面不是单数吗? “If I were a boy”的谓语为什么是“were”?“am”的过去时不是“was”吗? If I were in your shoes.的意思? 谁知道if I were in your shoes的意思? If you were here,sure I will hold your hand I是单数,但为什么有If I were you 这样句式虚拟语气我也知道我问的是为什么是I是单数,但为什么有If I were you 这样句式 而不是If i was you If I were you 其中为什莫用were If I _________ you,I _________________ (take) his advice then.为什么是were这不是对过去的虚拟吗?不应该是if i had been you,i would have taken his advice then.1、 Without your help,I ______________________ (not,achieve) so much in thi