be grown up被动词态中为什么用be?it must be terrible to be grown up.这句话中be grown up中的be为什么不用is?这里没有什么条件要用be原形啊.

be grown up被动词态中为什么用be?it must be terrible to be grown up.这句话中be grown up中的be为什么不用is?这里没有什么条件要用be原形啊. 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 grow up.解释说grow up用在被动时意为长大成人,为什么这句话没有被动的?错了 是grown up 这句话中的grown up的词性?It must be terrible to be grown up!这里的grown up是名词还是形容词,还是应该把be grown看成被动语态?请高手讲讲,谢谢! be grown on用被动语态造句带翻译 ‘Darling,it must be terrible to be grown up '请问：grown up前面为什么有个be, she wants to be an actor when she grown up 为什么yong grown 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 terrible to be grown up!这句话里为什么要加be呢? It must be terrible to be grown up!这是形式主语,真正的主语to be grown up.那这个结构是：to be done将来时的被动么? It must be terrible to be grown up!grown up与grow up有什么区别 are grown up是被动语态还是形容词 Darling ,it must be terrible to be grown up .句中为什么to be ,to be ,有什么作用 what does she think of being grown up?'being' is mean?be为什么加ing 完成时 用be动词做助动词的情况 如be grown up it must be terrible to be grown up 中的grown up 什么词性 grow up还是be grown up“长大”的意思I want to ______(A) grow up(B) be grown up You are grown up 我长大了,为什么是被动语态?而不是 you grow up