为强调句中的某一部分或因为句子结构的需要而将句子的词语位置进行变动而形成的句子称为倒装句。

感叹句为倒装句时，可用否定疑问句的形式。
Isn＇t it hot today!
今天真热！

There 以及介词形副词之后主语与动词倒装。
There are two ice-creams in the refrigerator.
冰箱里有两个冰淇淋。

频率副词放在句首形成倒装句。
Many times have I heard this.
我听到这话已经很多次了。

以only 开始的副词片语或副词子句放在句首形成倒装以加强语气。
Only I am as slim as her, can I eat ice-creams.
我只有像她这样苗条，才能吃冰淇淋。

Rarely, very rarely, little, never等放在句首形成倒装以加强语气。
Very rarely have I seen such a strikingly beautiful woman!
我很少见过如此美得出奇的女人。

假设语气省略if可形成倒装句。
Were she my wife, I would not let her wear so little.
假如她是我老婆，我不会让她穿得这么少。