作业帮You must not be late again tomorrow.为什么要加be动词?
来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/05/04 06:30:37
You must not be late again tomorrow.为什么要加be动词?
You must not be late again tomorrow.
为什么不能：
You must not late again tomorrow.
You must not be late again tomorrow.
为什么不能：
You must not late again tomorrow.
首先我们明白,must 是情态动词,late 是形容词.
如果是You must not late again tomorrow.则是情态动词直接接形容词,这不符合语法.正确的语法是be动词后跟形容词.由于must是情态动词,后面的be动词必须是原型,所以就变成了You must not be late again tomorrow.
如果是You must not late again tomorrow.则是情态动词直接接形容词,这不符合语法.正确的语法是be动词后跟形容词.由于must是情态动词,后面的be动词必须是原型,所以就变成了You must not be late again tomorrow.
You must not be late again tomorrow.为什么要加be动词?
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