A1EssentialIrregularAuxiliary: haber

ser

to be

Grammar Note

The most irregular and important verb in Spanish. Used to express permanent characteristics, identity, and origin.

Conjugation

Presente (Present)

yosoy
eres
él/ella/ustedes
nosotrossomos
vosotrossois
ellos/ellas/ustedesson

Pretérito (Simple Past)

yofui
fuiste
él/ella/ustedfue
nosotrosfuimos
vosotrosfuisteis
ellos/ellas/ustedesfueron

Pretérito Perfecto (Present Perfect)

yohe sido
has sido
él/ella/ustedha sido
nosotroshemos sido
vosotroshabéis sido
ellos/ellas/ustedeshan sido

Futuro (Future)

yoseré
serás
él/ella/ustedserá
nosotrosseremos
vosotrosseréis
ellos/ellas/ustedesserán

Example Sentences

present

Yo soy estudiante.

I am a student.

past

Nosotros fuimos al cine ayer.

We went to the cinema yesterday.

perfect

Ella ha sido muy amable.

She has been very nice.

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