Present — what is happening now, and what happens habitually
| yo | preocupoI worry | nosotros | preocupamoswe worry |
| tú | preocupasyou worry | vosotros | preocupáisyou all worry |
| él/ella/Ud. | preocupahe/she worries | ellos/Uds. | preocupanthey worry |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he preocupadoI have worried | nosotros | hemos preocupadowe have worried |
| tú | has preocupadoyou have worried | vosotros | habéis preocupadoyou all have worried |
| él/ella/Ud. | ha preocupadohe/she has worried | ellos/Uds. | han preocupadothey have worried |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | preocupe(that) I worry | nosotros | preocupemos(that) we worry |
| tú | preocupes(that) you worry | vosotros | preocupéis(that) you all worry |
| él/ella/Ud. | preocupe(that) he/she worries | ellos/Uds. | preocupen(that) they worry |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya preocupado(that) I have worried | nosotros | hayamos preocupado(that) we have worried |
| tú | hayas preocupado(that) you have worried | vosotros | hayáis preocupado(that) you all have worried |
| él/ella/Ud. | haya preocupado(that) he/she has worried | ellos/Uds. | hayan preocupado(that) they have worried |
Preterite — a finished past action — it started, it ended
| yo | preocupéI worried | nosotros | preocupamoswe worried |
| tú | preocupasteyou worried | vosotros | preocupasteisyou all worried |
| él/ella/Ud. | preocupóhe/she worried | ellos/Uds. | preocuparonthey worried |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | preocupabaI used to worry | nosotros | preocupábamoswe used to worry |
| tú | preocupabasyou used to worry | vosotros | preocupabaisyou all used to worry |
| él/ella/Ud. | preocupabahe/she used to worry | ellos/Uds. | preocupabanthey used to worry |
Past perfect — had —ed; further back than another past event
| yo | había preocupadoI had worried | nosotros | habíamos preocupadowe had worried |
| tú | habías preocupadoyou had worried | vosotros | habíais preocupadoyou all had worried |
| él/ella/Ud. | había preocupadohe/she had worried | ellos/Uds. | habían preocupadothey had worried |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | preocupara(that) I worried | nosotros | preocupáramos(that) we worried |
| tú | preocuparas(that) you worried | vosotros | preocuparais(that) you all worried |
| él/ella/Ud. | preocupara(that) he/she worried | ellos/Uds. | preocuparan(that) they worried |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | preocupase(that) I worried | nosotros | preocupásemos(that) we worried |
| tú | preocupases(that) you worried | vosotros | preocupaseis(that) you all worried |
| él/ella/Ud. | preocupase(that) he/she worried | ellos/Uds. | preocupasen(that) they worried |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera preocupado(that) I had worried | nosotros | hubiéramos preocupado(that) we had worried |
| tú | hubieras preocupado(that) you had worried | vosotros | hubierais preocupado(that) you all had worried |
| él/ella/Ud. | hubiera preocupado(that) he/she had worried | ellos/Uds. | hubieran preocupado(that) they had worried |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube preocupadoI had worried | nosotros | hubimos preocupadowe had worried |
| tú | hubiste preocupadoyou had worried | vosotros | hubisteis preocupadoyou all had worried |
| él/ella/Ud. | hubo preocupadohe/she had worried | ellos/Uds. | hubieron preocupadothey had worried |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | preocuparéI will worry | nosotros | preocuparemoswe will worry |
| tú | preocuparásyou will worry | vosotros | preocuparéisyou all will worry |
| él/ella/Ud. | preocuparáhe/she will worry | ellos/Uds. | preocuparánthey will worry |
Conditional — would —; also softens a request into politeness
| yo | preocuparíaI would worry | nosotros | preocuparíamoswe would worry |
| tú | preocuparíasyou would worry | vosotros | preocuparíaisyou all would worry |
| él/ella/Ud. | preocuparíahe/she would worry | ellos/Uds. | preocuparíanthey would worry |
Future perfect — will have —ed; done by some future point
| yo | habré preocupadoI will have worried | nosotros | habremos preocupadowe will have worried |
| tú | habrás preocupadoyou will have worried | vosotros | habréis preocupadoyou all will have worried |
| él/ella/Ud. | habrá preocupadohe/she will have worried | ellos/Uds. | habrán preocupadothey will have worried |
Conditional perfect — would have —ed; the road not taken
| yo | habría preocupadoI would have worried | nosotros | habríamos preocupadowe would have worried |
| tú | habrías preocupadoyou would have worried | vosotros | habríais preocupadoyou all would have worried |
| él/ella/Ud. | habría preocupadohe/she would have worried | ellos/Uds. | habrían preocupadothey would have worried |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | preocupare(should) I worry | nosotros | preocupáremos(should) we worry |
| tú | preocupares(should) you worry | vosotros | preocupareis(should) you all worry |
| él/ella/Ud. | preocupare(should) he/she worry | ellos/Uds. | preocuparen(should) they worry |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | preocupemoslet's worry |
| tú | preocupaworry! | vosotros | preocupadworry! |
| él/ella/Ud. | preocupeworry! | ellos/Uds. | preocupenworry! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no preocupemoslet's not worry |
| tú | no preocupesdon't worry | vosotros | no preocupéisdon't worry |
| él/ella/Ud. | no preocupedon't worry | ellos/Uds. | no preocupendon't worry |

I — the speaker
| Presente | preocupoI worry |
| Perfecto | he preocupadoI have worried |
| Subj. presente | preocupe(that) I worry |
| Subj. perfecto | haya preocupado(that) I have worried |
| Futuro | preocuparéI will worry |
| Condicional | preocuparíaI would worry |
| Fut. perfecto | habré preocupadoI will have worried |
| Cond. perfecto | habría preocupadoI would have worried |
| Subj. futuro | preocupare(should) I worry |
| Indefinido | preocupéI worried |
| Imperfecto | preocupabaI used to worry |
| Pluscuamp. | había preocupadoI had worried |
| Subj. imperf. | preocupara(that) I worried |
| Subj. -se | preocupase(that) I worried |
| Subj. pluscuamp. | hubiera preocupado(that) I had worried |
| Pret. anterior | hube preocupadoI had worried |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | preocupamoswe worry |
| Perfecto | hemos preocupadowe have worried |
| Subj. presente | preocupemos(that) we worry |
| Subj. perfecto | hayamos preocupado(that) we have worried |
| Futuro | preocuparemoswe will worry |
| Condicional | preocuparíamoswe would worry |
| Fut. perfecto | habremos preocupadowe will have worried |
| Cond. perfecto | habríamos preocupadowe would have worried |
| Subj. futuro | preocupáremos(should) we worry |
| Indefinido | preocupamoswe worried |
| Imperfecto | preocupábamoswe used to worry |
| Pluscuamp. | habíamos preocupadowe had worried |
| Subj. imperf. | preocupáramos(that) we worried |
| Subj. -se | preocupásemos(that) we worried |
| Subj. pluscuamp. | hubiéramos preocupado(that) we had worried |
| Pret. anterior | hubimos preocupadowe had worried |
| Imperativo | preocupemoslet's worry |
| Imper. negativo | no preocupemoslet's not worry |
you (informal) — one person you are familiar with
| Presente | preocupasyou worry |
| Perfecto | has preocupadoyou have worried |
| Subj. presente | preocupes(that) you worry |
| Subj. perfecto | hayas preocupado(that) you have worried |
| Futuro | preocuparásyou will worry |
| Condicional | preocuparíasyou would worry |
| Fut. perfecto | habrás preocupadoyou will have worried |
| Cond. perfecto | habrías preocupadoyou would have worried |
| Subj. futuro | preocupares(should) you worry |
| Indefinido | preocupasteyou worried |
| Imperfecto | preocupabasyou used to worry |
| Pluscuamp. | habías preocupadoyou had worried |
| Subj. imperf. | preocuparas(that) you worried |
| Subj. -se | preocupases(that) you worried |
| Subj. pluscuamp. | hubieras preocupado(that) you had worried |
| Pret. anterior | hubiste preocupadoyou had worried |
| Imperativo | preocupaworry! |
| Imper. negativo | no preocupesdon't worry |
you all — informal plural, Spain only
| Presente | preocupáisyou all worry |
| Perfecto | habéis preocupadoyou all have worried |
| Subj. presente | preocupéis(that) you all worry |
| Subj. perfecto | hayáis preocupado(that) you all have worried |
| Futuro | preocuparéisyou all will worry |
| Condicional | preocuparíaisyou all would worry |
| Fut. perfecto | habréis preocupadoyou all will have worried |
| Cond. perfecto | habríais preocupadoyou all would have worried |
| Subj. futuro | preocupareis(should) you all worry |
| Indefinido | preocupasteisyou all worried |
| Imperfecto | preocupabaisyou all used to worry |
| Pluscuamp. | habíais preocupadoyou all had worried |
| Subj. imperf. | preocuparais(that) you all worried |
| Subj. -se | preocupaseis(that) you all worried |
| Subj. pluscuamp. | hubierais preocupado(that) you all had worried |
| Pret. anterior | hubisteis preocupadoyou all had worried |
| Imperativo | preocupadworry! |
| Imper. negativo | no preocupéisdon't worry |
he, she, you (formal) — one other person — formal you shares it
| Presente | preocupahe/she worries |
| Perfecto | ha preocupadohe/she has worried |
| Subj. presente | preocupe(that) he/she worries |
| Subj. perfecto | haya preocupado(that) he/she has worried |
| Futuro | preocuparáhe/she will worry |
| Condicional | preocuparíahe/she would worry |
| Fut. perfecto | habrá preocupadohe/she will have worried |
| Cond. perfecto | habría preocupadohe/she would have worried |
| Subj. futuro | preocupare(should) he/she worry |
| Indefinido | preocupóhe/she worried |
| Imperfecto | preocupabahe/she used to worry |
| Pluscuamp. | había preocupadohe/she had worried |
| Subj. imperf. | preocupara(that) he/she worried |
| Subj. -se | preocupase(that) he/she worried |
| Subj. pluscuamp. | hubiera preocupado(that) he/she had worried |
| Pret. anterior | hubo preocupadohe/she had worried |
| Imperativo | preocupeworry! |
| Imper. negativo | no preocupedon't worry |
they, you all — several others — plural you shares it
| Presente | preocupanthey worry |
| Perfecto | han preocupadothey have worried |
| Subj. presente | preocupen(that) they worry |
| Subj. perfecto | hayan preocupado(that) they have worried |
| Futuro | preocuparánthey will worry |
| Condicional | preocuparíanthey would worry |
| Fut. perfecto | habrán preocupadothey will have worried |
| Cond. perfecto | habrían preocupadothey would have worried |
| Subj. futuro | preocuparen(should) they worry |
| Indefinido | preocuparonthey worried |
| Imperfecto | preocupabanthey used to worry |
| Pluscuamp. | habían preocupadothey had worried |
| Subj. imperf. | preocuparan(that) they worried |
| Subj. -se | preocupasen(that) they worried |
| Subj. pluscuamp. | hubieran preocupado(that) they had worried |
| Pret. anterior | hubieron preocupadothey had worried |
| Imperativo | preocupenworry! |
| Imper. negativo | no preocupendon't worry |
