can't和couldn't

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/05/14 04:56:40

can't和couldn't
区别?

第一个区别时态 can 是现在是.could 是过去式
第一个区别 could 比can 多一个意思就是情态动词 ,大概意思就是 couldnot 有个委婉,这类的意思 cannot 没有

can't和couldn't can’t / couldn’t have 表示否定推测只能用can't 和 couldn't couldn t和 may not/can't/couldn't/needn't/mustn't举例区别意思和用法 can't与couldn't的区别 couldn't与can't的区别! can't与couldn't区别, can't与couldn't 的用法 cannot can't couldn't mustn't的问题 couldn't 和shouldn't 区别, didn't 和couldn't的区别,