was和were是怎么回事?

was和were是怎么回事? was和were的用法 怎么分辨was和were were和was的区别 were和was的区别 was'were和did的用法 如何辨别was和were的读音? were和was加不加动词原形 如何辨别was和were的读音? were和was怎么区分?要清楚! were not和was not的简写. been和was were有什么区别 had和was,were的区别是设么? was were was/were been doing 和was/were being done 区别是什么?分别表示什么?如题... was 和were的用法?you后面是用was还是were? were 和 wes的用法为什么在When were you born?用were而不用was为什么when was your brother born?用was而不用were have has had是怎么回事,什么样子时在用什么?is are（was,were）呢?有什么句子示例吗