not 引导的倒装句比较少用，它否定的成分必须带有“强调”的意味，而不是随随便便地倒装。例如，可以强调否定宾语“一个也没...”，可以强调否定until 的时间状语等。

Not a single word did the boy write in his homework. 这男孩的家庭作业一个字也没写。

Not until midnight did it stop raining. 雨一直下到半夜才停。

Not in the least does he love chatting on line with strangers. 他一点也不热衷于网上同陌生人聊天。

Not only should we learn from books, but also we should learn from practice. 我们不但要向书本学习，而且要向实践学习。

网友说的情况，就是：

You should not say a word at the meeting. 变成：

Not a word should you say at the meeting.

He can't leave until I come back. 变成：

Not until I come back can he leave.