Only then did I realize what a mistake I have made.只是到了那时我才意识到我犯了个什么错误.1.这倒装句中did是什么意思?realize是动词?2.此倒装句的正常句是什么?

Only then did I realize I missed you. I had no intention of hurting your heart ,only then did i realize i was wrong. Only then did i realize that i was wrong翻译成中文是什么 Only then did i realize that i was wrong翻译成中文是什么 这句话有语法错误吗：only then did i realize how beautiful the world is. it was only then( )how much trouble I had caused to him.A.when I realizeB.did I realize C.that I realizeD.that did I realize I can be the real only not until和only then,only when之间有联系么例：Not until she told me did I know you had gone home.可不可以替换为 Only when she told me did I know you had gone home. Only then did I realize the importance of English.语法分析这是陈述句 为什么 谓语动词did 要放在主语之前? only倒装句疑问only倒装句要如何还原?Only then did I begin my work on designing a new bridge. I began my work on designing a new bridge only then 为什么还原后only then 要放最后? From then on ,I only love myself No matter I only then you. 英语翻译They say 'you only regret the things you never do.' Then why do I regret every bad thing I did to you? only then ...the importance of learning englishA did i realize B have i realizeed 好多句子都分不清要用do还是 have 该怎么区分呢? When only then can get rid of this bored real life请问这句是什么意思? When only then can get rid of this bored real life请问这句是什么意思?急, only then did we decide英语语法Only then did we decide to answer violence with violence这里为什么用did,为什么不用一般现在时 It was only when i reread this novel recently_____i began to understand its real meaning.A.Un...It was only when i reread this novel recently_____i began to understand its real meaning.A.Until B.then C.that D.SO 这道题目的所用的所有语法.