ser conjugation

Spanish verb · to be (permanent state)

Type
irregular
Gerund
siendo
Past participle
sido
Frequency
#1

Learner note. Irregular verb; use for identity, characteristics, origin, time, not temporary states.

  • Ella es doctora.She is a doctor.
  • Nosotros éramos amigos de niños.We were friends as children.

stemending regular ending   irr breaks the pattern · tap any form to hear it

Indicativo Indicative

PresentePresent

Presente of ser
yo(irregular; regular pattern would give so)
tú(irregular; regular pattern would give ses)
él/ella/usted(irregular; regular pattern would give se)
nosotros(irregular; regular pattern would give semos)
vosotros(irregular; regular pattern would give séis)
ellos/ellas/ustedes(irregular; regular pattern would give sen)

Pretérito indefinidoPreterite

Pretérito indefinido of ser
yo(irregular; regular pattern would give sí)
tú(irregular; regular pattern would give siste)
él/ella/usted(irregular; regular pattern would give sió)
nosotros(irregular; regular pattern would give simos)
vosotros(irregular; regular pattern would give sisteis)
ellos/ellas/ustedes(irregular; regular pattern would give sieron)

Pretérito imperfectoImperfect

Pretérito imperfecto of ser
yo(irregular; regular pattern would give sía)
tú(irregular; regular pattern would give sías)
él/ella/usted(irregular; regular pattern would give sía)
nosotros(irregular; regular pattern would give síamos)
vosotros(irregular; regular pattern would give síais)
ellos/ellas/ustedes(irregular; regular pattern would give sían)

Futuro simpleFuture

Futuro simple of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Condicional simpleConditional

Condicional simple of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Pretérito perfectoPresent perfect

Pretérito perfecto of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Pretérito pluscuamperfectoPast perfect

Pretérito pluscuamperfecto of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Futuro perfectoFuture perfect

Futuro perfecto of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Condicional compuestoConditional perfect

Condicional compuesto of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Pretérito anteriorPreterite perfect (literary)

Pretérito anterior of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Subjuntivo Subjunctive

Presente de subjuntivoPresent subjunctive

Presente de subjuntivo of ser
yo(irregular; regular pattern would give sa)
tú(irregular; regular pattern would give sas)
él/ella/usted(irregular; regular pattern would give sa)
nosotros(irregular; regular pattern would give samos)
vosotros(irregular; regular pattern would give sáis)
ellos/ellas/ustedes(irregular; regular pattern would give san)

Imperfecto de subjuntivo (-ra)Imperfect subjunctive (-ra)

Imperfecto de subjuntivo (-ra) of ser
yo(irregular; regular pattern would give siera)
tú(irregular; regular pattern would give sieras)
él/ella/usted(irregular; regular pattern would give siera)
nosotros(irregular; regular pattern would give siéramos)
vosotros(irregular; regular pattern would give sierais)
ellos/ellas/ustedes(irregular; regular pattern would give sieran)

Imperfecto de subjuntivo (-se)Imperfect subjunctive (-se)

Imperfecto de subjuntivo (-se) of ser
yo(irregular; regular pattern would give siese)
tú(irregular; regular pattern would give sieses)
él/ella/usted(irregular; regular pattern would give siese)
nosotros(irregular; regular pattern would give siésemos)
vosotros(irregular; regular pattern would give sieseis)
ellos/ellas/ustedes(irregular; regular pattern would give siesen)

Pretérito perfecto de subjuntivoPresent perfect subjunctive

Pretérito perfecto de subjuntivo of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Pluscuamperfecto de subjuntivoPast perfect subjunctive

Pluscuamperfecto de subjuntivo of ser
yo
tú
él/ella/usted
nosotros
vosotros
ellos/ellas/ustedes

Futuro de subjuntivoFuture subjunctive (archaic)

Futuro de subjuntivo of ser
yo(irregular; regular pattern would give siere)
tú(irregular; regular pattern would give sieres)
él/ella/usted(irregular; regular pattern would give siere)
nosotros(irregular; regular pattern would give siéremos)
vosotros(irregular; regular pattern would give siereis)
ellos/ellas/ustedes(irregular; regular pattern would give sieren)

Imperativo Imperative

Imperativo afirmativoAffirmative commands

Imperativo afirmativo of ser
tú
usted
nosotros
vosotros
ustedes

Imperativo negativoNegative commands

Imperativo negativo of ser
tú
usted
nosotros
vosotros
ustedes

Nearby verbs

All Spanish verbs → · Practise with flashcards

Ser FAQ

How do you conjugate ser in the present tense?

Ser in the Spanish presente: yo soy, tú eres, él/ella/usted es, nosotros somos, vosotros sois, ellos/ellas/ustedes son.

What is the Pretérito indefinido of ser?

yo fui, tú fuiste, él/ella/usted fue, nosotros fuimos, vosotros fuisteis, ellos/ellas/ustedes fueron.

Is ser irregular?

Yes. Ser has irregular forms in 7 tenses; they are the forms on dark tiles in the tables above.

What does ser mean in English?

Ser means “to be (permanent state)”. The past participle is sido.