①. not only…but(also)…连接的分句前倒后正。如：Not only was the city polluted but (also) the streets were crowed.
②. no sooner... than；hardly…when…； scarcely…when (before)…等连接的分句前倒后正。如：
No sooner had he finished the talk than a man stood up and put forward a question.
Hardly had we got to the bus stop when the bus arrived.
③. not until…连接的分句前正后倒。如：
Not until Mr. Smith came to China did he know what kind of a country she is.
Not until all the fish died in the river did the villagers realize how serious the pollution was.
④. neither…nor…连接的分句前后都倒,并且每个分句一般都是部分倒装。

用于部分倒装的情况：
1.表示否定意义或半否定意义的词置于句首时。常见的有seldom,never,hardly,no not,little 等。
2.由 only,not until 引导的状语置于句首时。
3.no sooner…than, hardly…when等结构中，no sooner 和hardly 置于句首时主语用部分倒装。
4.在so/such…that 引导的结果状语从句中，so/such引导的部分置于句首时主句用倒装。
5. “so/neither/nor+be/助动词/情态动词+主语”so与前面的肯定句呼应，nor， neither 与后面的否定句呼应。其中的动词形式取决于前一句的动词。表示前者的情况也适用于后者或一者具备两种情况。
6.省略if的虚拟条件句以had/were/should 开头引起的倒装。