it must be terrible to be grown up中to be 是个什么成分啊?

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itmustbeterribletobegrownup中tobe是个什么成分啊?itmustbeterribletobegrownup中tobe是个什么成分啊?itmustbeterribletobe

it must be terrible to be grown up中to be 是个什么成分啊?
it must be terrible to be grown up中to be 是个什么成分啊?

it must be terrible to be grown up中to be 是个什么成分啊?
it must be terrible to be grown up
to be grown up不定式短语做真正的主语
it代替真正的主语是形式主语
同时你可以这么说to be grown up is terrible只不过不这么说罢了
为了避免句子的头重脚轻

此句包含了一个英语中很常用的句型
it's +形容词 to do sth. 意为：“做某件事是.......的”。再如：
学好数学是很重要的
It's important to learn maths well.
to be grown up.可以看成一固定搭配，“长大的”
相信你能理解赞同吧！祝你进步！

it（形式主语） must be（系动词） terrible （表语）to be grown up（真正主语）

it must be terrible to be grown up句中to可以不要吗 it must be terrible be grown up 新概念英语第二册lesson17求解it must be terrible to be grown up 为什么用被动语态不是it must be terrible to be grow up呢 It must be terrible to be grown up!这句话里为什么要加be呢? it must be terrible to be grown up中to be 是个什么成分啊? It must be terrible to be grown up!grown up与grow up有什么区别 it must be terrible to be grown up 中的grown up 什么词性 It must be terrible to be grown up.must是情态动词,后面应该+动词原形,be terrible是动词原型?不是的话是什么? Darling ,it must be terrible to be grown up .句中为什么to be ,to be ,有什么作用 ‘Darling,it must be terrible to be grown up '请问：grown up前面为什么有个be, it must be terrible tobe grown up请帮我分析一下这句的语法结构 it must be terrible to be grown up!be的作用两个be有什么用,我没学过语法新概念英语第二册第17课 Darling,it must be terrible to be grown up问中to be grown up 为什么grown加 It Must Be?歌词 it must be He coughs _____-(terrible).He must be ill. sth terrible must be happen here为什么不用terribly? 高中情态动词-That must be a terrible mistake .-No.I don't think it __a mistake .A.must be B.mustn't be C.can be D can't be, it must be terrible to be grown up.这句,是一句话还是两句.这句的语法我不太懂,尤其是这个to