分析1:be to do结构表示注定某事会发生。here为地点状语。分析2:is here为系表结构,to stay为目的状语。分析2类似的句子:There is something wrong with this machine. We are here to help. 不定式为目的状语。
It looks as if this cold weather is here to stay.
请问这里的 sth is here to stay 是什么句式? 不定式作什么成分?
如题