Why can't i smoke here?- At no time is smoking in the meeting room.

问题描述:

Why can't i smoke here?- At no time is smoking in the meeting room.
is smoking permitted 是什么用法,为什么这么用?

这是一个倒装句.原句应该是:Smoking is permitted at no time in the meeting room.含有否定含义的词组位于句首时句子要倒装,而且是部分倒装,也就是把助动词放在主语前面.eg:By no means will I give up.我决不放弃.