if I were a boy为什么要用were不用was?求解

If I were a boy中,为什么要用were? If i were a boy 为什么用were啊 If I were a boy中,为什么要用were不用was? if I were a boy为什么要用were不用was?求解 If I were a boy与If I am a boy.的的区别,为什么I 后面可以用were? if i were a boy 为什么‘I’后面跟‘were’? if you are a boy ,if i were a boy,为什么you后面要用are ,i 后面要用were, 为什么 if i were a boy 中的were 不用was? if i were a 为什么if i were a boy?应该是 i was为什么是were If I were a boy.为什么要用were?变成三单或者复数的时候呢? if i were a boy again为什么用were而不用was if i were a boy 空间链接 要能用的. if i were a boy的英文歌词用中文标注 If I Were A Boy歌词 If I Were a Boy 歌词 If I Were A Boy 中文歌词 邓紫棋if i were a boy第几 If I Were A Boy 歌词谐音.