you do是什么时态 What did

1、did是do的过去式，由此判断 What did you do?这个句子是一般过去时。表示对过去的事情的提问。

2、 What did you do是特殊疑问句，译为“你做了什么/你做过什么”。答语应该为：主语＋动词过去式＋其他.

如： What did you do yesterday?

        I did my homework./ I watched TV./ I washed my clothes./ I went swimming with my friend.

例句的回答中：did washed washed went均为动词过去式

句型结构：

问：What did you do+地点( at home， in your school， at the zoo.o )?

I/We+动词过去式(saw， played swam.)(+其他)

What did you do there? 你们在那里做什么了?

We went to the bund and visited the Shanghai museum 我们去了(上海)外滩并且参观了上海博物馆。

该问句用于询问对方过去在某个地方做了什么， 事情生在过去，所以时态为一般过去时

其基本框架:疑问词十助动词十人/物+动词原形+其他?

问句中的did是助动词，帮助构成疑问句。

问句中的do为实义动词，意为“做"

例： 

Henry: Hi， Peter. What did you do at home?? 

嗨， 皮特你周末你在家做什么了?

Peter: I watched TV. what about you? 我看电视了。你呢?

Henry: I did my homework 我做我的家庭