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ser

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to be (permanent)

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ser Irregular Highly irregular

One of the two Spanish verbs for 'to be.' Ser expresses permanent qualities, identity, origin, and essential characteristics (e.g., Soy médico; La mesa es de madera). Every form is irregular—learn ...

Conjugation

View endings (Guide)

Indicativo — Indicative

Subjuntivo — Subjunctive

Imperativo — Imperative

Formas impersonales

These are the non‑finite verb forms used in combinations and constructions.

  • Infinitivoser
  • Infinitivo compuestohaber sido
  • Gerundiosiendo
  • Gerundio compuestohabiendo sido
  • Participiosido

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