一、基本概念
Did 是动词 do 的一般过去式，常用于构成一般过去时的疑问句和否定句。
Done 是动词 do 的过去分词形式，通常与助动词（如 have/has/had）连用，构成完成时态，或用于被动语态。
二、用法对比
1. Did 的用法（一般过去时）
- 用于疑问句：Did you finish your homework?
- 用于否定句：I did not (didn't) go to school yesterday.
- 不表示动作是否完成，只表示发生在过去。
2. Done 的用法（完成时 / 被动语态）
- 现在完成时：I have done my homework.
- 过去完成时：She had done the project before the meeting.
- 被动语态：The work was done by him.
三、常见错误示例
❌ 错误：I have did my homework.
✅ 正确：I have done my homework.
❌ 错误：Did you done it?
✅ 正确：Did you do it? 或 Have you done it?
四、总结
简单记忆：
- Did = 一般过去时（单独使用，不跟 have）
- Done = 必须搭配助动词（have/has/had/was/were 等）