在英语中，倒装结构是指将助动词或情态动词移到主语之前的句子结构。倒装结构通常用于强调、增加语气或表示特殊意义。
倒装结构有两种：全部倒装和部分倒装。全部倒装是指将整个主谓结构倒过来，例如：
"Never have I seen such a beautiful sunset." (我从未见过如此美丽的日落。)
部分倒装是指只将助动词或情态动词移到主语之前，而其他部分保持原样，例如：
"At no time did I agree to your proposal." (我从未同意过你的提议。)
部分倒装结构通常出现在否定句和疑问句中，并且常常与"never," "hardly," "scarcely," "rarely," "seldom," "barely," "not," "no," "nor," 和 "neither" 连用。例如：
"Hardly had he finished his meal when he received a phone call." (他刚刚吃完饭就接到了电话。)
"Seldom do I see him these days." (我这些天很少见到他。)
"Not until I arrived home did I reapze I had left my keys at the office." (直到我回到家我才意识到我把钥匙留在办公室了。)
倒装结构可以使句子更加复杂和富有表现力，但也容易导致句子变得繁琐。因此，在日常英语中使用倒装结构应谨慎。
倒装结构有两种：全部倒装和部分倒装。全部倒装是指将整个主谓结构倒过来，例如：
"Never have I seen such a beautiful sunset." (我从未见过如此美丽的日落。)
部分倒装是指只将助动词或情态动词移到主语之前，而其他部分保持原样，例如：
"At no time did I agree to your proposal." (我从未同意过你的提议。)
部分倒装结构通常出现在否定句和疑问句中，并且常常与"never," "hardly," "scarcely," "rarely," "seldom," "barely," "not," "no," "nor," 和 "neither" 连用。例如：
"Hardly had he finished his meal when he received a phone call." (他刚刚吃完饭就接到了电话。)
"Seldom do I see him these days." (我这些天很少见到他。)
"Not until I arrived home did I reapze I had left my keys at the office." (直到我回到家我才意识到我把钥匙留在办公室了。)
倒装结构可以使句子更加复杂和富有表现力，但也容易导致句子变得繁琐。因此，在日常英语中使用倒装结构应谨慎。