The simple past for finished actions: regular endings, the key irregular verbs and the time words that go with them.
eu falei
I spoke
você falou
you spoke
nós falamos
we spoke (same as the present)
eles falaram
they spoke
eu comi
I ate
você comeu
you ate
eles comeram
they ate
eu abri
I opened
você abriu
you opened
eu fui
I went / I was (ir and ser share the same past)
você foi
you went / you were
nós fomos
we went / we were
eles foram
they went / they were
eu estive
I was (estar)
eu tive
I had
ele teve
he had
eu fiz
I did, made
ele fez
he did
eu pude
I could, managed to
eu quis
I wanted
eu disse
I said
eu soube
I found out (saber)
eu vi
I saw
ele viu
he saw
eu vim
I came
ele veio
he came
eu dei
I gave
eu pus
I put
eu trouxe
I brought
Ontem eu trabalhei até tarde.
Yesterday I worked late.
Fui ao Rio no ano passado.
I went to Rio last year.
O que você fez no fim de semana?
What did you do at the weekend?
A gente viu um filme ótimo.
We saw a great film.
Ela me disse a verdade.
She told me the truth.
Eu já comi.
I've already eaten.
Você já foi a Salvador?
Have you ever been to Salvador?
Eu nunca estive em Portugal.
I've never been to Portugal.
ontem
yesterday
semana passada
last week
há dois anos
two years ago