In portuguese, talking about what you did is simple.
There are no do's and did's like in english.
What did you do?
Brazilians use the verb FAZER.
Let the verb FAZER 'do' all the doing.
FAZER in portuguese is very irregular. It gets conjugated into the "simple past" (the preterite tense) like this:
|I did||eu fiz|
|you/he/she did||você,ele,ela fez|
|we did||nós fiz||emos|
|they, you all did||vocês, eles, elas fiz||eram|
Fazer in the present: