can,t与don,t区别,didn,t与could,t区别
来源:学生作业帮 编辑:搜搜考试网作业帮 分类:英语作业 时间:2024/07/06 22:53:23
can,t与don,t区别,didn,t与could,t区别
![can,t与don,t区别,didn,t与could,t区别](/uploads/image/z/16069884-60-4.jpg?t=can%2Ct%E4%B8%8Edon%2Ct%E5%8C%BA%E5%88%AB%2Cdidn%2Ct%E4%B8%8Ecould%2Ct%E5%8C%BA%E5%88%AB)
can't是不可能的意思.例:I can't move that box because it is so heavy.
don't是助动词.例:I don't know.
did't是don't的过去式,在一般过去式的句子中改否定句是常用到.例:He worked out this problem by himself.的否定句是He didn't work out this problem by himself.
couldn't是can't的过去式.could也有时候表示委婉语气.例:Could you give me that pen?
don't是助动词.例:I don't know.
did't是don't的过去式,在一般过去式的句子中改否定句是常用到.例:He worked out this problem by himself.的否定句是He didn't work out this problem by himself.
couldn't是can't的过去式.could也有时候表示委婉语气.例:Could you give me that pen?