请赐教 I needn't 和 I don't need的区别?可否举例说明?

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请赐教 I needn't 和 I don't need的区别?可否举例说明?

请赐教 I needn't 和 I don't need的区别?可否举例说明?
请赐教 I needn't 和 I don't need的区别?
可否举例说明?

请赐教 I needn't 和 I don't need的区别?可否举例说明?
I needn't do sth
I don't need to do sth.
这两个短语意思相近都有不必要的意思,可以换用,但是need后面有not的话是情态动词,后面用动词原形.而don't need后面跟不定式.

一个是美式英语,一个是英国英语。一般我们用有助动词的I don't need。

我没有必要
我不需要

I needn't 强调需要,必须
而I don't need 强调 不

need 既可以做情态动词也可以做行为动词.情态动词的特点自己能否定,后跟动词原形.行为动词自己不能否定早助动词
I needn't go there.是情态动词
I don't need to go there.是行为动词.

第一个的话应该是用做情态动词,后跟动词原形。第二个need的意思是需要,用做实义动词,后跟不定式I don't need to do.

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