dudar
to doubtPresentewhat is going on now
Presente
Present — what is happening now, and what happens habitually
| yo | dudoI doubt | nosotros | dudamoswe doubt |
| tú | dudasyou doubt | vosotros | dudáisyou all doubt |
| él/ella/Ud. | dudahe/she doubts | ellos/Uds. | dudanthey doubt |
Pretérito perfecto
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he dudadoI have doubted | nosotros | hemos dudadowe have doubted |
| tú | has dudadoyou have doubted | vosotros | habéis dudadoyou all have doubted |
| él/ella/Ud. | ha dudadohe/she has doubted | ellos/Uds. | han dudadothey have doubted |
Presente de subjuntivo
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | dude(that) I doubt | nosotros | dudemos(that) we doubt |
| tú | dudes(that) you doubt | vosotros | dudéis(that) you all doubt |
| él/ella/Ud. | dude(that) he/she doubts | ellos/Uds. | duden(that) they doubt |
Perfecto de subjuntivo
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya dudado(that) I have doubted | nosotros | hayamos dudado(that) we have doubted |
| tú | hayas dudado(that) you have doubted | vosotros | hayáis dudado(that) you all have doubted |
| él/ella/Ud. | haya dudado(that) he/she has doubted | ellos/Uds. | hayan dudado(that) they have doubted |
Pasadowhat went on
Pretérito indefinido
Preterite — a finished past action — it started, it ended
| yo | dudéI doubted | nosotros | dudamoswe doubted |
| tú | dudasteyou doubted | vosotros | dudasteisyou all doubted |
| él/ella/Ud. | dudóhe/she doubted | ellos/Uds. | dudaronthey doubted |
Pretérito imperfecto
Imperfect — used to / was —ing; background, habits, descriptions
| yo | dudabaI used to doubt | nosotros | dudábamoswe used to doubt |
| tú | dudabasyou used to doubt | vosotros | dudabaisyou all used to doubt |
| él/ella/Ud. | dudabahe/she used to doubt | ellos/Uds. | dudabanthey used to doubt |
Pretérito pluscuamperfecto
Past perfect — had —ed; further back than another past event
| yo | había dudadoI had doubted | nosotros | habíamos dudadowe had doubted |
| tú | habías dudadoyou had doubted | vosotros | habíais dudadoyou all had doubted |
| él/ella/Ud. | había dudadohe/she had doubted | ellos/Uds. | habían dudadothey had doubted |
Imperfecto de subjuntivo (-ra)
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | dudara(that) I doubted | nosotros | dudáramos(that) we doubted |
| tú | dudaras(that) you doubted | vosotros | dudarais(that) you all doubted |
| él/ella/Ud. | dudara(that) he/she doubted | ellos/Uds. | dudaran(that) they doubted |
Imperfecto de subjuntivo (-se)
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | dudase(that) I doubted | nosotros | dudásemos(that) we doubted |
| tú | dudases(that) you doubted | vosotros | dudaseis(that) you all doubted |
| él/ella/Ud. | dudase(that) he/she doubted | ellos/Uds. | dudasen(that) they doubted |
Pluscuamperfecto de subjuntivo
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera dudado(that) I had doubted | nosotros | hubiéramos dudado(that) we had doubted |
| tú | hubieras dudado(that) you had doubted | vosotros | hubierais dudado(that) you all had doubted |
| él/ella/Ud. | hubiera dudado(that) he/she had doubted | ellos/Uds. | hubieran dudado(that) they had doubted |
Pretérito anterior
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube dudadoI had doubted | nosotros | hubimos dudadowe had doubted |
| tú | hubiste dudadoyou had doubted | vosotros | hubisteis dudadoyou all had doubted |
| él/ella/Ud. | hubo dudadohe/she had doubted | ellos/Uds. | hubieron dudadothey had doubted |
Futurowhat will or would go on
Futuro simple
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | dudaréI will doubt | nosotros | dudaremoswe will doubt |
| tú | dudarásyou will doubt | vosotros | dudaréisyou all will doubt |
| él/ella/Ud. | dudaráhe/she will doubt | ellos/Uds. | dudaránthey will doubt |
Condicional simple
Conditional — would —; also softens a request into politeness
| yo | dudaríaI would doubt | nosotros | dudaríamoswe would doubt |
| tú | dudaríasyou would doubt | vosotros | dudaríaisyou all would doubt |
| él/ella/Ud. | dudaríahe/she would doubt | ellos/Uds. | dudaríanthey would doubt |
Futuro perfecto
Future perfect — will have —ed; done by some future point
| yo | habré dudadoI will have doubted | nosotros | habremos dudadowe will have doubted |
| tú | habrás dudadoyou will have doubted | vosotros | habréis dudadoyou all will have doubted |
| él/ella/Ud. | habrá dudadohe/she will have doubted | ellos/Uds. | habrán dudadothey will have doubted |
Condicional perfecto
Conditional perfect — would have —ed; the road not taken
| yo | habría dudadoI would have doubted | nosotros | habríamos dudadowe would have doubted |
| tú | habrías dudadoyou would have doubted | vosotros | habríais dudadoyou all would have doubted |
| él/ella/Ud. | habría dudadohe/she would have doubted | ellos/Uds. | habrían dudadothey would have doubted |
Futuro de subjuntivo
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | dudare(should) I doubt | nosotros | dudáremos(should) we doubt |
| tú | dudares(should) you doubt | vosotros | dudareis(should) you all doubt |
| él/ella/Ud. | dudare(should) he/she doubt | ellos/Uds. | dudaren(should) they doubt |
Imperativotelling someone to
Imperativo afirmativo
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | dudemoslet's doubt |
| tú | dudadoubt! | vosotros | dudaddoubt! |
| él/ella/Ud. | dudedoubt! | ellos/Uds. | dudendoubt! |
Imperativo negativo
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no dudemoslet's not doubt |
| tú | no dudesdon't doubt | vosotros | no dudéisdon't doubt |
| él/ella/Ud. | no dudedon't doubt | ellos/Uds. | no dudendon't doubt |
