where 后面什么情况下加DO DID等

where do you do your homework every ninght?
where did you go yesterday?

特殊疑问句的构成：“疑问词（wh-,how,)+助动词/情态动词+主语+谓语动词？”不同的时态体现在助动词和谓语动词上。这三言两语是说不清的，你还是买本语法书看吧。