Deber

to owe/should

🎯
Infinitive (infinitivo)
Base form of the verb
deber
🏃
Gerund (gerundio)
Present participle (-ing form)
debiendo
📋
Past Participle
Used in compound tenses
debido

Simple Tenses

Present Indicative (presente de indicativo)
Present actions and habitual activities
PersonConjugation
yo
debo
I owe/should
debes
you owe/should
él/ella/usted
debe
he/she/you owe/shoulds
nosotros
debemos
we owe/should
vosotros
debéis
you all owe/should
ellos/ustedes
deben
they/you all owe/should
🕰️
Imperfect Indicative (imperfecto de indicativo)
Ongoing past actions and descriptions
PersonConjugation
yo
debía
I used to owe/should
debías
you used to owe/should
él/ella/usted
debía
he/she/you used to owe/should
nosotros
debíamos
we used to owe/should
vosotros
debíais
you all used to owe/should
ellos/ustedes
debían
they/you all used to owe/should
📅
Preterit (pretérito)
Completed past actions
PersonConjugation
yo
debí
I owe/shoulded
debiste
you owe/shoulded
él/ella/usted
debió
he/she/you owe/shoulded
nosotros
debimos
we owe/shoulded
vosotros
debisteis
you all owe/shoulded
ellos/ustedes
debieron
they/you all owe/shoulded
🔮
Future (futuro)
Future actions and intentions
PersonConjugation
yo
deberé
I will owe/should
deberás
you will owe/should
él/ella/usted
deberá
he/she/you will owe/should
nosotros
deberemos
we will owe/should
vosotros
deberéis
you all will owe/should
ellos/ustedes
deberán
they/you all will owe/should
🎯
Conditional (potencial simple)
Hypothetical and conditional actions
PersonConjugation
yo
debería
I would owe/should
deberías
you would owe/should
él/ella/usted
debería
he/she/you would owe/should
nosotros
deberíamos
we would owe/should
vosotros
deberíais
you all would owe/should
ellos/ustedes
deberían
they/you all would owe/should
💭
Present Subjunctive (presente de subjuntivo)
Subjective present actions and desires
PersonConjugation
yo
deba
that I owe/should
debas
that you owe/should
él/ella/usted
deba
that he/she/you owe/should
nosotros
debamos
that we owe/should
vosotros
debáis
that you all owe/should
ellos/ustedes
deban
that they/you all owe/should
🌙
Imperfect Subjunctive (imperfecto de subjuntivo)
Subjective past actions and hypothetical situations
PersonConjugation
yo
debiera
or
debiese
that I owe/shoulded
debieras
or
debieses
that you owe/shoulded
él/ella/usted
debiera
or
debiese
that he/she/you owe/shoulded
nosotros
debiéramos
or
debiésemos
that we owe/shoulded
vosotros
debierais
or
debieseis
that you all owe/shoulded
ellos/ustedes
debieran
or
debiesen
that they/you all owe/shoulded

Compound Tenses

Present Perfect (perfecto de indicativo)
Actions completed recently or with present relevance
PersonConjugation
yo
he debido
I have owe/shoulded
has debido
you have owe/shoulded
él/ella/usted
ha debido
he/she/you have owe/shoulded
nosotros
hemos debido
we have owe/shoulded
vosotros
habéis debido
you all have owe/shoulded
ellos/ustedes
han debido
they/you all have owe/shoulded
Pluperfect Indicative (pluscuamperfecto de indicativo)
Actions completed before another past action
PersonConjugation
yo
había debido
I had owe/shoulded
habías debido
you had owe/shoulded
él/ella/usted
había debido
he/she/you had owe/shoulded
nosotros
habíamos debido
we had owe/shoulded
vosotros
habíais debido
you all had owe/shoulded
ellos/ustedes
habían debido
they/you all had owe/shoulded
📍
Preterit Perfect (pretérito anterior)
Actions completed immediately before another past action
PersonConjugation
yo
hube debido
I had owe/shoulded
hubiste debido
you had owe/shoulded
él/ella/usted
hubo debido
he/she/you had owe/shoulded
nosotros
hubimos debido
we had owe/shoulded
vosotros
hubisteis debido
you all had owe/shoulded
ellos/ustedes
hubieron debido
they/you all had owe/shoulded
🎊
Future Perfect (futuro perfecto)
Actions that will be completed by a future time
PersonConjugation
yo
habré debido
I will have owe/shoulded
habrás debido
you will have owe/shoulded
él/ella/usted
habrá debido
he/she/you will have owe/shoulded
nosotros
habremos debido
we will have owe/shoulded
vosotros
habréis debido
you all will have owe/shoulded
ellos/ustedes
habrán debido
they/you all will have owe/shoulded
🔄
Conditional Perfect (potencial compuesto)
Actions that would have been completed under certain conditions
PersonConjugation
yo
habría debido
I would have owe/shoulded
habrías debido
you would have owe/shoulded
él/ella/usted
habría debido
he/she/you would have owe/shoulded
nosotros
habríamos debido
we would have owe/shoulded
vosotros
habríais debido
you all would have owe/shoulded
ellos/ustedes
habrían debido
they/you all would have owe/shoulded
💫
Subjunctive Present Perfect (perfecto de subjuntivo)
Subjective actions completed in relation to the present
PersonConjugation
yo
haya debido
that I have owe/shoulded
hayas debido
that you have owe/shoulded
él/ella/usted
haya debido
that he/she/you have owe/shoulded
nosotros
hayamos debido
that we have owe/shoulded
vosotros
hayáis debido
that you all have owe/shoulded
ellos/ustedes
hayan debido
that they/you all have owe/shoulded
🌌
Subjunctive Past Perfect (pluscuamperfecto de subjuntivo)
Subjective actions completed before another past action
PersonConjugation
yo
hubiera debido
that I had owe/shoulded
hubieras debido
that you had owe/shoulded
él/ella/usted
hubiera debido
that he/she/you had owe/shoulded
nosotros
hubiéramos debido
that we had owe/shoulded
vosotros
hubierais debido
that you all had owe/shoulded
ellos/ustedes
hubieran debido
that they/you all had owe/shoulded
Commands (imperativo)
Commands and direct orders
PersonCommandEnglish
debe
owe/should! (you)
usted
deba
owe/should! (you formal)
nosotros
debamos
let's owe/should!
vosotros
debed
owe/should! (you all)
ustedes
deban
owe/should! (you all)
🚫
Negative Commands (imperativo negativo)
Negative commands and prohibitions
PersonCommandEnglish
no debas
don't owe/should! (you)
usted
no deba
don't owe/should! (you formal)
nosotros
no debamos
let's not owe/should!
vosotros
no debáis
don't owe/should! (you all)
ustedes
no deban
don't owe/should! (you all)

More About "deber"

Idiomatic Expressions

como es debido

as it should be / properly

💡 Doing something correctly or appropriately

debe de ser

it must be / it probably is

💡 Expressing supposition or probability

cumplir con el deber

to do one's duty

💡 Fulfilling one's obligations

Examples in Context

Debo estudiar para el examen.

I must study for the exam.

Present

Debía llamarla ayer.

I should have called her yesterday.

Imperfect

Debes hacer tu tarea.

You should do your homework.

Present

Debería comer más saludable.

I should eat healthier.

Conditional

He debido olvidar mi cartera.

I must have forgotten my wallet.

Present Perfect
Synonyms & Antonyms

Synonyms:

tener que(to have to)

Stronger obligation, more common in speech

haber de(to be supposed to)

Archaic or literary, softer obligation

Usage Notes
  • Deber is a regular -er verb expressing obligation or duty
  • Deber + infinitive = should/must/ought to (moral obligation)
  • Deber de + infinitive = must/probably (supposition)
  • The distinction between deber and deber de is often blurred in modern Spanish
  • As a noun, "el deber" means duty or homework
  • Conditional "debería" expresses suggestions or advice
  • Different from "tener que" which expresses stronger, external obligation
  • Past forms often translate as "should have" in English