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?
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
英语人气:907 ℃时间:2020-03-30 11:07:05
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