为什么用过去式呢.was.

为什么用过去式呢.was. The video you showed was really funny为什么要用showed和was这两个过去式呢? 英语中WAS里动词用原形还是过去式呢 It is called a clavichord.中的called是过去式吗?如果是,那为什么还用is而不是was呢? He was clever enough to answer them请问这句话中be为什么要用过去式呢? He believed that he was right请问这句为什么要用过去式呢?句中也没有表示过去的状语. was+过去式Was+done是被动态吧,为什么下面的句子是Was+过去式的呢?The original program was destroyed. I set down my experiences so that I would remember them when i was old!前面都用would了 为什么还要was old?用过去式呢! i was cooking 为什么用was was 不是 是过去式吗 请问这句话后面的动词为什么要问过去分词?He was sleeping while they stolen his money.是过去式为什么要用过去分词呢？ 他星期一 星期二 没有去上学he was absent on monday tuesday.为什么不是直接的 absented (一般过去式呢?而是was 过去式 再加上动词原形 过去式时was/were后加动词过去式吗?did,was,were后接的动词用过去式还是用原型?简洁明了,说明为什么 He lived in Beijing since he was born为什么用过去式was,不用过去分词been she was going to quit the job.为什么用WAS 过去式当BE动词? I am frightened. I was frighten. 的区别?怎么决定过去式用在哪呢?或者是这两个那个对,为什么? The kite is made of paper．风筝是用纸做的.为什么不用过去式（was）而用is?The CD is made in China呢? 过去进行时为什么有的用ing有的用过去式?为什么有的前半句就用was、were+ing,后半句就用过去式了? 英语翻译用过去式呢？