fui/foste/foi/fomos/foram
Pretérito Perfeito De Ser/Ir
In Portuguese, the verbs ser (to be) and ir (to go) share the exact same forms in the simple past tense: fui, foste, foi, fomos, foram. Context and prepositions tell them apart.
How It Works
The Pretérito Perfeito Simples is used for actions that happened at a specific point in time and are now finished.
1. Identical Forms:
Because ser and ir share these forms, you must look at the words following the verb to understand the meaning:
- Ir (to go): Usually followed by a preposition of direction like a or para (e.g., fui ao banco). In informal Brazilian Portuguese, it is very common to use the preposition em (e.g., fui no banco).
- Ser (to be): Usually followed by an adjective or a noun (e.g., fui feliz).
2. Conjugation Table:
- Eu fui (I was / I went)
- Tu foste (You were / You went - informal)
- Você/Ele/Ela foi (You/He/She was / went)
- Nós fomos (We were / We went)
- Vocês/Eles/Elas foram (You all/They were / went)
3. Nuance of Ser:
While ser often describes permanent traits, in the past tense, fui is used to summarize a completed period of time or a specific event (e.g., 'The party was good').
Examples (5)
- Ontem eu fui ao cinema com meus amigos.
Yesterday I went to the cinema with my friends.
Word by Word: Yesterday I went to-the cinema with my friends.
Here, 'fui' means 'went' because it is followed by the preposition 'ao' (to the).
- A festa de aniversário foi maravilhosa.
The birthday party was wonderful.
Word by Word: The party of birthday was wonderful.
In this case, 'foi' means 'was' because it describes the quality of the party.
- Eles foram viajar para a Europa no verão passado.
They went traveling to Europe last summer.
Word by Word: They went to-travel to the Europe in-the summer past.
When 'foram' is followed by another verb (viajar), it indicates the action of going to do something.
- Eu fui professor durante dez anos.
I was a teacher for ten years.
Word by Word: I was teacher during ten years.
Even though being a teacher is a profession (ser), we use 'fui' because the ten-year period is a completed block of time.
- Nós fomos à praia no sábado.
We went to the beach on Saturday.
Word by Word: We went to-the beach in-the Saturday.
The use of 'à' (contraction of a + a) indicates movement, so 'fomos' means 'went'.
Common Mistakes
Adding a Spanish-style accent to 'fui' or 'foi'.
Eu fuí ao mercado e o dia foí bom.Eu fui ao mercado e o dia foi bom.In Portuguese, 'fui' and 'foi' never take an accent mark. This is a common error for those who also study Spanish.
Confusing 'fui' (ser) with 'estive' (estar).
Eu fui em casa ontem à noite.Eu estive em casa ontem à noite.Use estive for location or temporary states. Use 'fui' for identity or to mean 'went'.
Misplacing the stress on 'foram'.
Eles forAM (stressed on the end).Eles FOram (stressed on the first syllable).The past tense 'foram' is always stressed on the first syllable. Stressing the last syllable makes it sound like the future tense 'farão'.
How It Connects
Learn This First
To learn the preterite forms 'fui/foste/foi/fomos/foram', learners must first be familiar with the present tense of the verbs 'ser' (to be) and 'ir' (to go), as these two verbs share identical forms in the past tense. Additionally, knowledge of subject pronouns is necessary to correctly apply each conjugated form.
- sou/és/é/somos/sãoSer Present Tense
Understanding the present tense of 'ser' is essential to recognize its past tense counterpart and its function as a verb of identity.
Foundations - vou/vais/vai/vamos/vãoIr Present Tense
Understanding the present tense of 'ir' is necessary to recognize its past tense counterpart and its function as a verb of movement.
Foundations - eu/tu/você/ele/elaSubject Pronouns (Singular)
Subject pronouns are required to understand the conjugation mapping for the different forms of the preterite.
Foundations
Related Patterns
- ser / estarSer vs. Estar Basics
Understanding the difference between 'ser' and 'estar' is crucial for choosing between 'fui' and 'estive'.
Level 1 - ir + a/para + DestinationIr with Destination
This explains the prepositions used when 'fui' means 'went'.
Level 2 - era/eras/era/éramos/eramPretérito Imperfeito De Ser
This is the Imperfect past of 'ser', used for habits or descriptions rather than completed actions.
Level 2 - estive/estiveste/esteve/estivemos/estiveramPretérito Perfeito De Estar
The Pretérito Perfeito Simples of 'estar', often confused with 'fui' by learners.
Level 2 - tu / vocêTu vs. Você
Explains why you might use 'foste' (tu) in Portugal or 'foi' (você) in Brazil.
Level 1
Learn Next
Patterns that build on this one.