ser conjugation

to be (permanent)

Spanish Irregular

The Spanish verb "ser" means "to be (permanent)" in English. It is an irregular verb. Below you'll find the complete conjugation tables for "ser" across all 5 tenses. New to Spanish verbs? Start with the Spanish verb guide.

Lexi
Lexi's Memory Hack

SER is a time traveller — it never follows rules. Remember "SOY, ERES, ES" by chanting: "So-y Er-es Es, it does what it wants!" The whole present tense is its own thing.

Ser and ir share the same preterite forms (fui, fuiste, fue…). Context always makes it clear which one you mean.

How to Conjugate "ser" in the Present Tense

Presente de indicativo Actions happening now or regularly
Person English Conjugation
yo I soy
you (informal) eres
él/ella/usted he/she/you (formal) es
nosotros we somos
vosotros you all (Spain) sois
ellos/ustedes they/you all son
Él es un doctor famoso.
say it EHL EHS
He is a famous doctor.
In other languages
  • French Il est un médecin célèbre.
  • German Er ist ein berühmter Arzt.
  • Dutch Hij is een beroemde dokter.
Yo soy estudiante de español.
say it YOH SOY
I am a Spanish student.
In other languages
  • French Je suis un étudiant espagnol.
  • German Ich bin ein spanischer Student.
  • Dutch Ik ben een Spaanse student.

How to Conjugate "ser" in the Past (completed) Tense

Pretérito perfecto simple Actions that finished in the past
Person English Conjugation
yo I fui
you (informal) fuiste
él/ella/usted he/she/you (formal) fue
nosotros we fuimos
vosotros you all (Spain) fuisteis
ellos/ustedes they/you all fueron
Él fue el ganador del juego.
say it el FUE el ga-na-DOR del HWEH-goh
He was the winner of the game.
In other languages
  • French Il était le gagnant du jeu.
  • German Er war der Gewinner des Spiels.
  • Dutch Hij was de winnaar van het spel.
Yo fui estudiante el año pasado.
say it yo FUI es-tu-DYAN-teh el AH-nyoh pa-SAH-doh
I was a student last year.
In other languages
  • French J'étais étudiant l'année dernière.
  • German Ich war letztes Jahr Student.
  • Dutch Ik was vorig jaar student.

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How to Conjugate "ser" in the Past (ongoing) Tense

Pretérito imperfecto Actions that were ongoing in the past
Person English Conjugation
yo I era
you (informal) eras
él/ella/usted he/she/you (formal) era
nosotros we éramos
vosotros you all (Spain) erais
ellos/ustedes they/you all eran
Él era mi mejor amigo.
say it EHL EH-rah
He was my best friend.
In other languages
  • French Il était mon meilleur ami.
  • German Er war mon bester Freund.
  • Dutch Hij was mijn beste vriend.
Yo era un niño muy feliz.
say it YOH EH-rah
I was a very happy child.
In other languages
  • French J'étais un enfant très heureux.
  • German Ich war ein sehr glückliches Kind.
  • Dutch Ik was een heel gelukkig kind.

How to Conjugate "ser" in the Future Tense

Futuro simple Actions that will happen
Person English Conjugation
yo I seré
you (informal) serás
él/ella/usted he/she/you (formal) será
nosotros we seremos
vosotros you all (Spain) seréis
ellos/ustedes they/you all serán
Él será el nuevo jefe.
say it ehl seh-RAH
He will be the new boss.
In other languages
  • French Il sera le nouveau patron.
  • German Er wird der neue Chef sein.
  • Dutch Hij zal de nieuwe baas zijn.
Yo seré un buen doctor.
say it yo seh-REH
I will be a good doctor.
In other languages
  • French Je serai un bon médecin.
  • German Ich werde ein guter Arzt sein.
  • Dutch Ik zal een goede dokter zijn.

How to Conjugate "ser" in the Would (conditional) Tense

Condicional simple Hypothetical actions
Person English Conjugation
yo I sería
you (informal) serías
él/ella/usted he/she/you (formal) sería
nosotros we seríamos
vosotros you all (Spain) seríais
ellos/ustedes they/you all serían
Él sería el mejor amigo.
say it el seh-REE-ah
He would be the best friend.
In other languages
  • French Il serait le meilleur ami.
  • German Er wäre der beste Freund.
  • Dutch Hij zou de beste vriend zijn.
Yo sería muy feliz aquí.
say it yo seh-REE-ah
I would be very happy here.
In other languages
  • French Je serais très heureux ici.
  • German Ich wäre hier sehr glücklich.
  • Dutch Ik zou hier erg gelukkig zijn.

Frequently Asked Questions About "ser"

Is "ser" regular or irregular in Spanish?
"Ser" is an irregular Spanish verb, meaning its conjugation does not follow standard patterns and must be memorized individually.
What does "ser" mean in English?
The Spanish verb "ser" means "to be (permanent)" in English.
How do you conjugate "ser" in the present tense?
In the present tense (Presente de indicativo): yo → soy, tú → eres, él/ella/usted → es, nosotros → somos, vosotros → sois, ellos/ustedes → son.
How many tenses does "ser" have in Spanish?
"Ser" is conjugated across 5 tenses in Spanish: Present, Past (completed), Past (ongoing), Future, Would (conditional).

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