Not only does she teach us about English but also she tells us how to do things well.为什么是not only do

题目

Not only does she teach us about English but also she tells us how to do things well.为什么是not only does she啊,为什么要加个does?

答案

因为这个是半倒装句,其实半倒装句的结构和一般疑问句类似
Not only … but also 连接两个分句,并且 not only 位于句首时,第一个分句中的主语和谓语要部分倒装.