当我们把一个肯定句转变为疑问句时，常把肯定句中的助动词或情态动词放在句首。这类助动词或情态动词包括： be 或者， have ，或者 can ，或者 do ，或者 shall 或者， will ，或者 may ，或者 must ，或者 dare 或者， need ，或者 ought 或者 used ，是，有，能，做，将，可能，一定，敢于，需要，应该，用 等。

他会做这件事。He will do it ,

 他会做这件事吗？Will he do it?,

这是你的手机号码 。This is my mobile phone number ,

这是你的手机号码吗？Is this your mobile phone number?,

如果肯定句中没有助动词或情态动词时，我们可以在句首用 do 的某种形式，以构成倒装语序。

杰克喜欢吃鱼。Jack likes to eat fish ,

杰克喜欢吃鱼吗？Does Jack like to eat fish?,

特殊疑问句的构成：特殊疑问词+一般疑问句

他喜欢吃什么？What does he like to eat?,

 他们什么时候去长城？When will they go to the Great Wall？,

 昨晚你去哪里了？Where did you go last night？,

如果疑问代词在句中做主语，句子不要倒装。

今晚谁不来吃饭？Who is not coming to dinner tonight?,

在反意问句中，用一般疑问句的形式，前后两分句的主语，人称要一致。前一分句是肯定，反意问句用否定形式，并一定要缩写；前一分句是否定 反意问句用肯定形式。

 一切都准备好了，是吗？Everything is ready, isn't it？,

博比很少喝醉，是吗？Bobbie seldom got drunk, did he?,

昨天晚上你玩得很愉快，是吗？You had a wonderful time last night, didn't you?,

英语中的感叹句有时也通过倒装的形式来表达。

圣诞老人来啦！（谓语前置）Here comes Santa Clause !,

他们真没礼貌！（宾语前置）What bad manners they have !,

孩子们多么幸福啊！（表语前置）How happy the children are ！,

某些含有“ really ”意义的简短表达，也用倒装语序，但它们并不需要任何回答。

埃尔莎昨天晚上看到一条蛇。Elsa saw a snake last night ,

 真的吗？Did she？,

我们的新老板人很随和。Our new boss is very easygoing ,

是吗？Is he?,

菲利普已经完成了他的报告。Philip has already finished his report ,

真的吗？Has he?,

以引导词 there 引起的陈述句

房间里没有人。There was nobody in the room ,

山谷里有一条河。in the valley there lies a river ,

不妨一试。There is no harm in trying ,

在虚拟语气中，如果不用 if ，且从句中有 were 或者had 或者should 等助动词，需将助动词 were或者 had 或者should 放在句首，用倒装语序。

假如我是一只小鸟，我就能自由翱翔。If I were a bird, I could fly freely ,

Were I a bird ,I could fly freely ,

要是我早知道这件事，我就不会把钱借给他了．If I had known it earlier, I wouldn't have lent him the money,

 Had I known it earlier, I wouldn't have lent him the money ,

和平万岁！Long live peace !,

愿我们的友谊长存！May our friendship be ever lasting !,

直接引语的一部分或全部放在句首时

老师说：“你5分钟之前就该来了。”“You should have been here five minutes ago,” said the teacher ,

“道格拉斯，”老师说道，“下次一定要小心。”“Douglas,”said the teacher “do be careful next time,”,

为了突出重要的内容，或为了生动地描写动作，人们往往采用修辞倒装。

以前我们从来没有见过这样的情景。Never before have we seen such a sight ,

只有用这种方法，我们才能学好英语。Only in this way can we learn English well ,

是生活把我们的学生变得如此自私。Selfish does our life make us students ,

火箭上了天。up went the rocket into the sky ,

我们面前有很多困难。Before us lay a lot of difficulties ,

知足者常乐。Happy are those who are contented ,

接下去进来一个四十多岁的男人。Next came a man in his forties ,

我们等了很久才收到她的信。Long did we wait before hearing from her ,

他最后的话就是这样。Such were his last words ,

我一到家，电话就响了。Hardly had I got home when the telephone rang ,

她怎么会知道那个秘密的？How came it that she knew the secret?,

完全倒装是将谓语的全部放在主语之前，此结构通常只用于一般现在时和一般过去时两种。

她左边坐着她丈夫。On her left sat her husband ,

你要的书在这儿。Here is the book you want ,

小船沉下去了。Down went the small boat ,