英语句型转换技巧包括主动语态变被动语态，被动语态变主动语态，宾语从句变为主语从句，合并句子，以及并列句变复合句。这些技巧可以帮助你在写作和口语中更准确地表达自己，使你的语言更加准确和流畅。
1. 主动语态变被动语态
将主动语态转换为被动语态是常见的转换技巧。被动语态强调动作的承受者，而主动语态强调动作的执行者。例如：
- 主动语态：Tom writes a letter.
- 被动语态：A letter is written by Tom.
2. 被动语态变主动语态
有时候，使用主动语态可以使句子更加简洁明了。例如：
- 被动语态：The book was written by Jane.
- 主动语态：Jane wrote the book.
3. 宾语从句变为主语从句
将宾语从句转换为主语从句可以使句子更加清晰和简洁。例如：
- 宾语从句：I know that he is coming.
- 主语从句：That he is coming is known to me.
4. 合并句子
通过合并两个或多个句子，可以使句子更加简洁。例如：
- 原句：He was tired. He went to bed early.
- 合并后：Feeling tired, he went to bed early.
5. 并列句变复合句
将并列句转换为复合句可以使句子更加复杂和丰富。例如：
- 并列句：I went to the store. I bought some milk.
- 复合句：I went to the store and bought some milk.
