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couldn't和can't的区别 两者有何不同

2023-10-27 15:23:52文/勾子木

couldn't和can't的区别:在请求语句里,couldn't比can't较委婉。在一般语句里,couldn't表过去时,can't表现在时。例句:I couldn't tell if he had been in a fight or had just fallen down.

couldn't和can't的区别 两者有何不同

couldn't和can't的区别

1、表示时间不同:couldn't代表的是过去的时间,表示以前某种情况不能发生或者某种行动无法完成。例如:“I couldn't finish my homework last night”。而can't则代表的是现在或者将来的时间。它指的是当前或者未来某种事情是不可能发生的。例如:“I can't play basketball”。

2、语气方面不同:在请求语句里,couldn't比can't较委婉。例如:“I couldn't disagree with you more”。

can't造句

1、You can't measure it.

2、You can't edit what you can't see.

3、I can't keep quiet.

4、I can't run faster.

5、We can't forgive his impoliteness.

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