求解、一般过去式:一个句子有was/were后面的动词用原型么?还是过去式的形式啊!例:he was did his homework yesterday.用did还是do。我是这个意思。

问题描述:

求解、一般过去式:一个句子有was/were后面的动词用原型么?还是过去式的形式啊!
例:
he was did his homework yesterday.用did还是do。我是这个意思。

用过去式,表被动意义

如果一个句子中有Be动词,后面还要跟的话肯定就是ing或者to do了