如何辨别要用is are weren't wasn't were

来源：学生作业学帮网 编辑：学帮网 时间：2024/05/24 06:41:55

如何辨别要用is are weren't wasn't were

前两个现在时,表示现在的状态,后面过去时,表示过去的状态.单数用一四,复数,你和虚拟语气用二五