倒装句是英语语法中的重要句型，其动词通常出现在主语之前，或助动词与主语交替出现。倒装句可以使句子更生动有力，强调重点，增加文学作品的丰富性和感染力，也用于问句以增强语气。掌握倒装句的使用方法可以提高英语表达能力。
- Negative adverb / adverbial phrase + auxiliary verb + subject + main verb
例如：Never have I seen such a beautiful sunset.
- Prepositional phrase + auxiliary verb + subject + main verb
例如：In the corner of the room sat a small, lonely mouse.
- Only + auxiliary verb + subject + main verb
例如：Only when you understand the rules, can you play the game well.
倒装句可以使文句更加生动有力，强调句子的重点，使其更加清晰明了。倒装句也常用于文学作品中，能够提高文学的丰富性和感染力。
此外，倒装句还可以用于问句中，这时倒装词序会让句子语气更为强烈和明显。例如：
- Did you see the movie last night?
- Have you ever been to Paris?
