Deber - to owe / must / should
Conjugations
Indicative Present
| Person | Conjugation | English |
|---|
| yo | debo | I must |
| tú | debes | you must |
| nosotros/as | debemos | we must |
| él/ella/usted | debe | he must |
| ellos/ellas/ustedes | deben | they must |
Indicative Present Continuous
| Person | Conjugation | English |
|---|
| yo | estoy debiendo | I am owing |
| tú | estás debiendo | you are owing |
| nosotros/as | estamos debiendo | we are owing |
| él/ella/usted | está debiendo | he is owing |
| ellos/ellas/ustedes | están debiendo | they are owing |
Indicative Preterite
| Person | Conjugation | English |
|---|
| yo | debí | I had to |
| tú | debiste | you had to |
| nosotros/as | debimos | we had to |
| él/ella/usted | debió | he had to |
| ellos/ellas/ustedes | debieron | they had to |
Indicative Imperfect
| Person | Conjugation | English |
|---|
| yo | debía | I used to have to |
| tú | debías | you used to have to |
| nosotros/as | debíamos | we used to have to |
| él/ella/usted | debía | he used to have to |
| ellos/ellas/ustedes | debían | they used to have to |
Indicative Future
| Person | Conjugation | English |
|---|
| yo | deberé | I will have to |
| tú | deberás | you will have to |
| nosotros/as | deberemos | we will have to |
| él/ella/usted | deberá | he will have to |
| ellos/ellas/ustedes | deberán | they will have to |
| Person | Conjugation | English |
|---|
| yo | voy a deber | I am going to have to |
| tú | vas a deber | you are going to have to |
| nosotros/as | vamos a deber | we are going to have to |
| él/ella/usted | va a deber | he is going to have to |
| ellos/ellas/ustedes | van a deber | they are going to have to |
Conditional
| Person | Conjugation | English |
|---|
| yo | debería | I should/would have to |
| tú | deberías | you should/would have to |
| nosotros/as | deberíamos | we should/would have to |
| él/ella/usted | debería | he should/would have to |
| ellos/ellas/ustedes | deberían | they should/would have to |
Indicative Present Perfect
| Person | Conjugation | English |
|---|
| yo | he debido | I have had to |
| tú | has debido | you have had to |
| nosotros/as | hemos debido | we have had to |
| él/ella/usted | ha debido | he has had to |
| ellos/ellas/ustedes | han debido | they have had to |
Indicative Past Perfect
| Person | Conjugation | English |
|---|
| yo | había debido | I had had to |
| tú | habías debido | you had had to |
| nosotros/as | habíamos debido | we had had to |
| él/ella/usted | había debido | he had had to |
| ellos/ellas/ustedes | habían debido | they had had to |
Indicative Future Perfect
| Person | Conjugation | English |
|---|
| yo | habré debido | I will have had to |
| tú | habrás debido | you will have had to |
| nosotros/as | habremos debido | we will have had to |
| él/ella/usted | habrá debido | he will have had to |
| ellos/ellas/ustedes | habrán debido | they will have had to |
Conditional Perfect
| Person | Conjugation | English |
|---|
| yo | habría debido | I would have had to |
| tú | habrías debido | you would have had to |
| nosotros/as | habríamos debido | we would have had to |
| él/ella/usted | habría debido | he would have had to |
| ellos/ellas/ustedes | habrían debido | they would have had to |
Subjunctive Present
| Person | Conjugation | English |
|---|
| yo | deba | I must |
| tú | debas | you must |
| nosotros/as | debamos | we must |
| él/ella/usted | deba | he must |
| ellos/ellas/ustedes | deban | they must |
Subjunctive Imperfect
| Person | Conjugation | English |
|---|
| yo | debiera | I had to |
| tú | debieras | you had to |
| nosotros/as | debiéramos | we had to |
| él/ella/usted | debiera | he had to |
| ellos/ellas/ustedes | debieran | they had to |
Subjunctive Future
| Person | Conjugation | English |
|---|
| yo | debiere | I will have to |
| tú | debieres | you will have to |
| nosotros/as | debiéremos | we will have to |
| él/ella/usted | debiere | he will have to |
| ellos/ellas/ustedes | debieren | they will have to |
Subjunctive Present Perfect
| Person | Conjugation | English |
|---|
| yo | haya debido | I have had to |
| tú | hayas debido | you have had to |
| nosotros/as | hayamos debido | we have had to |
| él/ella/usted | haya debido | he has had to |
| ellos/ellas/ustedes | hayan debido | they have had to |
Subjunctive Past Perfect
| Person | Conjugation | English |
|---|
| yo | hubiera debido | I had had to |
| tú | hubieras debido | you had had to |
| nosotros/as | hubiéramos debido | we had had to |
| él/ella/usted | hubiera debido | he had had to |
| ellos/ellas/ustedes | hubieran debido | they had had to |
Subjunctive Future Perfect
| Person | Conjugation | English |
|---|
| yo | hubiere debido | I will have had to |
| tú | hubieres debido | you will have had to |
| nosotros/as | hubiéremos debido | we will have had to |
| él/ella/usted | hubiere debido | he will have had to |
| ellos/ellas/ustedes | hubieren debido | they will have had to |
Imperative Affirmative
| Person | Conjugation | English |
|---|
| tú | debe | must! |
| nosotros/as | debamos | let’s have to! |
| él/ella/usted | deba | must! (formal) |
| ellos/ellas/ustedes | deban | must! (formal pl.) |
Imperative Negative
| Person | Conjugation | English |
|---|
| tú | no debas | you must not! |
| nosotros/as | no debamos | let’s not have to! |
| él/ella/usted | no deba | must not! (formal) |
| ellos/ellas/ustedes | no deban | must not! (formal pl.) |
| Form | Conjugation | English |
|---|
| Infinitive | deber | to owe/must/should |
| Gerund | debiendo | owing |
| Past Participle | debido | owed/had to |