A1MentalIrregularAuxiliary: haber
saber
to know (facts)
Grammar Note
Irregular verb. Different from "conocer" (to know people/places). Important distinction!
Conjugation
Presente (Present)
| yo | sé |
| tú | sabes |
| él/ella/usted | sabe |
| nosotros | sabemos |
| vosotros | sabéis |
| ellos/ellas/ustedes | saben |
Pretérito (Simple Past)
| yo | supe |
| tú | supiste |
| él/ella/usted | supo |
| nosotros | supimos |
| vosotros | supisteis |
| ellos/ellas/ustedes | supieron |
Pretérito Perfecto (Present Perfect)
| yo | he sabido |
| tú | has sabido |
| él/ella/usted | ha sabido |
| nosotros | hemos sabido |
| vosotros | habéis sabido |
| ellos/ellas/ustedes | han sabido |
Futuro (Future)
| yo | sabré |
| tú | sabrás |
| él/ella/usted | sabrá |
| nosotros | sabremos |
| vosotros | sabréis |
| ellos/ellas/ustedes | sabrán |
Example Sentences
present
Yo no lo sé.
I don't know (it).
past
Él supo la respuesta.
He knew the answer.
perfect
¿Has sabido eso?
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