What is the conjugation of SER in preterite?
Ser in the Preterite
Person | Conjugation | Means |
---|---|---|
yo | fui | I was |
tú | fuiste | you (informal, singular) were |
él/ella | fue | he/she was |
usted | fue | you (formal, singular) were |
What are the conjugations of IR in the preterite tense?
In the past tense, ir conjugation has another stem change from ir to fui– and fue-….Past Simple.

Yo | fui |
---|---|
Tú | fuiste |
Él, ella, usted | fue |
Nosotros | fuimos |
Ellos, ellas, ustedes | fueron |
How do you conjugate IR and ser?
Ser is never followed by a, but ir always is! Read and listen to these examples: Yo fui el primero de mi clase el año pasado….Learn how to conjugate “ser” and “ir” in El Pretérito Indefinido in Spanish.
yo | fui | I was/went |
---|---|---|
vosotros / vosotras | fuisteis | you were/went |
ellos / ellas / uds. | fueron | they were/went |
What is the conjugation for IR?
Ir conjugation: basic forms
Subject | Present | Preterite |
---|---|---|
yo | voy | fui |
tú | vas | fuiste |
él, ella, Usted | va | fue |
nosotros | vamos | fuimos |
What is the conjugation of IR?

Ir conjugation: basic forms
Subject | Present | Preterite |
---|---|---|
él, ella, Usted | va | fue |
nosotros | vamos | fuimos |
vosotros | vais | fuisteis |
ellos, ellas, ustedes | van | fueron |
Why are IR and SER the same in the preterite?
Ser was easy because, even though it is irregular in the preterite, it is exactly the same as the verb ir (to go): fui, fuiste, fue, fuimos, fuisteis, fueron. When ir and ser are used in the preterite, you have to look at the context to tell which of the two verbs is being used.