A1ModalAuxiliary: haber
deber
must, to have to
Grammar Note
Modal verb expressing necessity or obligation. Very common in everyday speech.
Conjugation
Presente (Present)
| yo | debo |
| tú | debes |
| él/ella/usted | debe |
| nosotros | debemos |
| vosotros | debéis |
| ellos/ellas/ustedes | deben |
Pretérito (Simple Past)
| yo | debí |
| tú | debiste |
| él/ella/usted | debió |
| nosotros | debimos |
| vosotros | debisteis |
| ellos/ellas/ustedes | debieron |
Pretérito Perfecto (Present Perfect)
| yo | he debido |
| tú | has debido |
| él/ella/usted | ha debido |
| nosotros | hemos debido |
| vosotros | habéis debido |
| ellos/ellas/ustedes | han debido |
Futuro (Future)
| yo | deberé |
| tú | deberás |
| él/ella/usted | deberá |
| nosotros | deberemos |
| vosotros | deberéis |
| ellos/ellas/ustedes | deberán |
Example Sentences
present
Yo debo irme ahora.
I must go now.
past
Él tuvo que trabajar.
He had to work.
perfect
Nosotros hemos tenido que esperar.
We have had to wait.
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