能否解释一下musn't,needn't ,don't have to,can't ,couldn't的区别?

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/06/04 21:43:23

能否解释一下musn't,needn't ,don't have to,can't ,couldn't的区别?
May和might的区别?
简略扼要
要期末考了,感激不尽………………

musn't,禁止.语气强硬.要注意和needn't区别
needn't= don't have to,不必,不需要
can't 不能,不可以
couldn't：第一个是can't 的过去式,第二个是语气委婉时的用法.
may,可能.表推测
might.1.may过去式,2.可能,表推测,可能性较大
另：当用must引导一般疑问句时,肯定回答：yes,you must.否定的绝对绝对绝对不能用no,you mustn't,得用no,you needn't 或者no ,you don't have to.
这是个常考点,也是易错点.你可以想他的意思来理解.
for example:
Must i wash the dishes?
yes ,you must.
no ,you need't.
问.我必须洗盘子吗?
肯.是的,你必须.
否.不是,你不需要.你不能说,不行,你禁止洗盘子.语气上就说不通.

能否解释一下musn't,needn't ,don't have to,can't ,couldn't的区别? couldn't don't have to needn't的区别 can`t 和musn`t的区别 needn't needn't have done 和don't need to 的区别 can,can't,must,mustn't,needn't,be allowed to,have to,don't h don't need,needn't 的区别英语语法don't have to 与 don't need to的区别和用法don't need to和 needn' musn‘t和 don't 的用法 can’t / couldn’t have may not/can't/couldn't/needn't/mustn't举例区别意思和用法 "don't need to" 与 "don't have to"、"needn't" 的意义相同吗 can't与couldn't的区别