Question

responder las siguientes preguntas de past simple:

when did you do last weekend?

did your friend visit you last night?

what did you eat yesteray?

Answer 1

Pasado simple= did se usa como auxiliar y verbo 
did y su negacion es did not o didn't 
Para formuar una pregunta en pasado simple 
usa esta formula 

Auxiliar (DID Constante) + Pronombre(ejem:/you/we..)+ Verbo (siempre el verbo en presente)+ complemento 
Si usas un pronombre interrogativo va antes del did Ejemplo Where did you go yesterday 
Pronombres interrogativos: Where, when. how, who entre otros 

Aqui veras que se cumple en este ejemplo: Did you Buy a car? Compraste un carro? 

Para responder usa esta formula : pronombre+ verbo en pasado + complemento: Ejemplo: I bought a car 

Para negar usa esta formula: pronombre+ Did not(aqui es auxiliar)+verbo(aqui en presente porque el did not hace el trabajo de pasado)+ complemento 

Did you eat Yesterday? 
Yes i ate yesterday 
No i did not eat yesterday 

Did you buy a car? 
Did we Kill him? 
Did they get a house? 
Did she pray yesterday? 
Did he go to Venezuela? 
Did you see him? 
Did you Travel yesterday? 

Where did you go yesterday? 
I went to Barinas 
I did not go to barinass