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A person's head shown in profile with a single, bright, glowing lightbulb floating above it, symbolizing knowing a fact or piece of information.

saber

to know

Complete conjugation tables and interactive practice exercises. This is an irregular -er verb.

The Spanish verb saber means to know.

Present tense:

yo
sabes
él/ella/ustedsabe
nosotrossabemos
vosotrossabéis
ellos/ellas/ustedessaben

Complete Conjugation Tables

Reference all tenses and moods

🔄 Conjugations

indicative

present

él/ella/ustedsabe
yo
sabes
ellos/ellas/ustedessaben
nosotrossabemos
vosotrossabéis

Saber is regular in the present tense except for the 'yo' form, which is the unique word 'sé'.

Forms, examples & usage →

future

él/ella/ustedsabrá
yosabré
sabrás
ellos/ellas/ustedessabrán
nosotrossabremos
vosotrossabréis

Saber uses the irregular stem 'sabr-' followed by standard future endings.

Forms, examples & usage →

imperfect

él/ella/ustedsabía
yosabía
sabías
ellos/ellas/ustedessabían
nosotrossabíamos
vosotrossabíais

The imperfect of saber is completely regular: sabía, sabías, sabía, sabíamos, sabíais, sabían.

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conditional

él/ella/ustedsabría
yosabría
sabrías
ellos/ellas/ustedessabrían
nosotrossabríamos
vosotrossabríais

The conditional uses the same irregular stem as the future: 'sabr-'.

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preterite

él/ella/ustedsupo
yosupe
supiste
ellos/ellas/ustedessupieron
nosotrossupimos
vosotrossupisteis

In the preterite, saber changes meaning to 'found out' or 'learned' and uses the irregular stem 'sup-'.

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imperative

negative

ustedesno sepan
nosotrosno sepamos
no sepas
ustedno sepa
vosotrosno sepáis

All negative commands for saber use the present subjunctive forms preceded by 'no'.

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affirmative

ustedessepan
nosotrossepamos
sabe
ustedsepa
vosotrossabed

The imperative of saber is rarely used alone but appears in phrases like 'Sabe que...' or 'Sepa usted...'.

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subjunctive

present

él/ella/ustedsepa
yosepa
sepas
ellos/ellas/ustedessepan
nosotrossepamos
vosotrossepáis

The present subjunctive of saber is irregular: sepa, sepas, sepa, sepamos, sepáis, sepan.

Forms, examples & usage →

imperfect

él/ella/ustedsupiera
yosupiera
supieras
ellos/ellas/ustedessupieran
nosotrossupiéramos
vosotrossupierais

The imperfect subjunctive uses the preterite stem 'sup-': supiera, supieras, supiera...

Forms, examples & usage →

Practice Conjugations

Test your knowledge with interactive exercises

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Take saber from tables to real Spanish

Conjugation tables are the start. Read 200+ illustrated and narrated Spanish stories to see 'saber' in action across real sentences — and build the instinct that native speakers have.