Present — what is happening now, and what happens habitually
| yo | decidoI decide | nosotros | decidimoswe decide |
| tú | decidesyou decide | vosotros | decidísyou all decide |
| él/ella/Ud. | decidehe/she decides | ellos/Uds. | decidenthey decide |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he decididoI have decided | nosotros | hemos decididowe have decided |
| tú | has decididoyou have decided | vosotros | habéis decididoyou all have decided |
| él/ella/Ud. | ha decididohe/she has decided | ellos/Uds. | han decididothey have decided |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | decida(that) I decide | nosotros | decidamos(that) we decide |
| tú | decidas(that) you decide | vosotros | decidáis(that) you all decide |
| él/ella/Ud. | decida(that) he/she decides | ellos/Uds. | decidan(that) they decide |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya decidido(that) I have decided | nosotros | hayamos decidido(that) we have decided |
| tú | hayas decidido(that) you have decided | vosotros | hayáis decidido(that) you all have decided |
| él/ella/Ud. | haya decidido(that) he/she has decided | ellos/Uds. | hayan decidido(that) they have decided |
Preterite — a finished past action — it started, it ended
| yo | decidíI decided | nosotros | decidimoswe decided |
| tú | decidisteyou decided | vosotros | decidisteisyou all decided |
| él/ella/Ud. | decidióhe/she decided | ellos/Uds. | decidieronthey decided |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | decidíaI used to decide | nosotros | decidíamoswe used to decide |
| tú | decidíasyou used to decide | vosotros | decidíaisyou all used to decide |
| él/ella/Ud. | decidíahe/she used to decide | ellos/Uds. | decidíanthey used to decide |
Past perfect — had —ed; further back than another past event
| yo | había decididoI had decided | nosotros | habíamos decididowe had decided |
| tú | habías decididoyou had decided | vosotros | habíais decididoyou all had decided |
| él/ella/Ud. | había decididohe/she had decided | ellos/Uds. | habían decididothey had decided |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | decidiera(that) I decided | nosotros | decidiéramos(that) we decided |
| tú | decidieras(that) you decided | vosotros | decidierais(that) you all decided |
| él/ella/Ud. | decidiera(that) he/she decided | ellos/Uds. | decidieran(that) they decided |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | decidiese(that) I decided | nosotros | decidiésemos(that) we decided |
| tú | decidieses(that) you decided | vosotros | decidieseis(that) you all decided |
| él/ella/Ud. | decidiese(that) he/she decided | ellos/Uds. | decidiesen(that) they decided |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera decidido(that) I had decided | nosotros | hubiéramos decidido(that) we had decided |
| tú | hubieras decidido(that) you had decided | vosotros | hubierais decidido(that) you all had decided |
| él/ella/Ud. | hubiera decidido(that) he/she had decided | ellos/Uds. | hubieran decidido(that) they had decided |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube decididoI had decided | nosotros | hubimos decididowe had decided |
| tú | hubiste decididoyou had decided | vosotros | hubisteis decididoyou all had decided |
| él/ella/Ud. | hubo decididohe/she had decided | ellos/Uds. | hubieron decididothey had decided |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | decidiréI will decide | nosotros | decidiremoswe will decide |
| tú | decidirásyou will decide | vosotros | decidiréisyou all will decide |
| él/ella/Ud. | decidiráhe/she will decide | ellos/Uds. | decidiránthey will decide |
Conditional — would —; also softens a request into politeness
| yo | decidiríaI would decide | nosotros | decidiríamoswe would decide |
| tú | decidiríasyou would decide | vosotros | decidiríaisyou all would decide |
| él/ella/Ud. | decidiríahe/she would decide | ellos/Uds. | decidiríanthey would decide |
Future perfect — will have —ed; done by some future point
| yo | habré decididoI will have decided | nosotros | habremos decididowe will have decided |
| tú | habrás decididoyou will have decided | vosotros | habréis decididoyou all will have decided |
| él/ella/Ud. | habrá decididohe/she will have decided | ellos/Uds. | habrán decididothey will have decided |
Conditional perfect — would have —ed; the road not taken
| yo | habría decididoI would have decided | nosotros | habríamos decididowe would have decided |
| tú | habrías decididoyou would have decided | vosotros | habríais decididoyou all would have decided |
| él/ella/Ud. | habría decididohe/she would have decided | ellos/Uds. | habrían decididothey would have decided |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | decidiere(should) I decide | nosotros | decidiéremos(should) we decide |
| tú | decidieres(should) you decide | vosotros | decidiereis(should) you all decide |
| él/ella/Ud. | decidiere(should) he/she decide | ellos/Uds. | decidieren(should) they decide |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | decidamoslet's decide |
| tú | decidedecide! | vosotros | decididdecide! |
| él/ella/Ud. | decidadecide! | ellos/Uds. | decidandecide! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no decidamoslet's not decide |
| tú | no decidasdon't decide | vosotros | no decidáisdon't decide |
| él/ella/Ud. | no decidadon't decide | ellos/Uds. | no decidandon't decide |

I — the speaker
| Presente | decidoI decide |
| Perfecto | he decididoI have decided |
| Subj. presente | decida(that) I decide |
| Subj. perfecto | haya decidido(that) I have decided |
| Futuro | decidiréI will decide |
| Condicional | decidiríaI would decide |
| Fut. perfecto | habré decididoI will have decided |
| Cond. perfecto | habría decididoI would have decided |
| Subj. futuro | decidiere(should) I decide |
| Indefinido | decidíI decided |
| Imperfecto | decidíaI used to decide |
| Pluscuamp. | había decididoI had decided |
| Subj. imperf. | decidiera(that) I decided |
| Subj. -se | decidiese(that) I decided |
| Subj. pluscuamp. | hubiera decidido(that) I had decided |
| Pret. anterior | hube decididoI had decided |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | decidimoswe decide |
| Perfecto | hemos decididowe have decided |
| Subj. presente | decidamos(that) we decide |
| Subj. perfecto | hayamos decidido(that) we have decided |
| Futuro | decidiremoswe will decide |
| Condicional | decidiríamoswe would decide |
| Fut. perfecto | habremos decididowe will have decided |
| Cond. perfecto | habríamos decididowe would have decided |
| Subj. futuro | decidiéremos(should) we decide |
| Indefinido | decidimoswe decided |
| Imperfecto | decidíamoswe used to decide |
| Pluscuamp. | habíamos decididowe had decided |
| Subj. imperf. | decidiéramos(that) we decided |
| Subj. -se | decidiésemos(that) we decided |
| Subj. pluscuamp. | hubiéramos decidido(that) we had decided |
| Pret. anterior | hubimos decididowe had decided |
| Imperativo | decidamoslet's decide |
| Imper. negativo | no decidamoslet's not decide |
you (informal) — one person you are familiar with
| Presente | decidesyou decide |
| Perfecto | has decididoyou have decided |
| Subj. presente | decidas(that) you decide |
| Subj. perfecto | hayas decidido(that) you have decided |
| Futuro | decidirásyou will decide |
| Condicional | decidiríasyou would decide |
| Fut. perfecto | habrás decididoyou will have decided |
| Cond. perfecto | habrías decididoyou would have decided |
| Subj. futuro | decidieres(should) you decide |
| Indefinido | decidisteyou decided |
| Imperfecto | decidíasyou used to decide |
| Pluscuamp. | habías decididoyou had decided |
| Subj. imperf. | decidieras(that) you decided |
| Subj. -se | decidieses(that) you decided |
| Subj. pluscuamp. | hubieras decidido(that) you had decided |
| Pret. anterior | hubiste decididoyou had decided |
| Imperativo | decidedecide! |
| Imper. negativo | no decidasdon't decide |
you all — informal plural, Spain only
| Presente | decidísyou all decide |
| Perfecto | habéis decididoyou all have decided |
| Subj. presente | decidáis(that) you all decide |
| Subj. perfecto | hayáis decidido(that) you all have decided |
| Futuro | decidiréisyou all will decide |
| Condicional | decidiríaisyou all would decide |
| Fut. perfecto | habréis decididoyou all will have decided |
| Cond. perfecto | habríais decididoyou all would have decided |
| Subj. futuro | decidiereis(should) you all decide |
| Indefinido | decidisteisyou all decided |
| Imperfecto | decidíaisyou all used to decide |
| Pluscuamp. | habíais decididoyou all had decided |
| Subj. imperf. | decidierais(that) you all decided |
| Subj. -se | decidieseis(that) you all decided |
| Subj. pluscuamp. | hubierais decidido(that) you all had decided |
| Pret. anterior | hubisteis decididoyou all had decided |
| Imperativo | decididdecide! |
| Imper. negativo | no decidáisdon't decide |
he, she, you (formal) — one other person — formal you shares it
| Presente | decidehe/she decides |
| Perfecto | ha decididohe/she has decided |
| Subj. presente | decida(that) he/she decides |
| Subj. perfecto | haya decidido(that) he/she has decided |
| Futuro | decidiráhe/she will decide |
| Condicional | decidiríahe/she would decide |
| Fut. perfecto | habrá decididohe/she will have decided |
| Cond. perfecto | habría decididohe/she would have decided |
| Subj. futuro | decidiere(should) he/she decide |
| Indefinido | decidióhe/she decided |
| Imperfecto | decidíahe/she used to decide |
| Pluscuamp. | había decididohe/she had decided |
| Subj. imperf. | decidiera(that) he/she decided |
| Subj. -se | decidiese(that) he/she decided |
| Subj. pluscuamp. | hubiera decidido(that) he/she had decided |
| Pret. anterior | hubo decididohe/she had decided |
| Imperativo | decidadecide! |
| Imper. negativo | no decidadon't decide |
they, you all — several others — plural you shares it
| Presente | decidenthey decide |
| Perfecto | han decididothey have decided |
| Subj. presente | decidan(that) they decide |
| Subj. perfecto | hayan decidido(that) they have decided |
| Futuro | decidiránthey will decide |
| Condicional | decidiríanthey would decide |
| Fut. perfecto | habrán decididothey will have decided |
| Cond. perfecto | habrían decididothey would have decided |
| Subj. futuro | decidieren(should) they decide |
| Indefinido | decidieronthey decided |
| Imperfecto | decidíanthey used to decide |
| Pluscuamp. | habían decididothey had decided |
| Subj. imperf. | decidieran(that) they decided |
| Subj. -se | decidiesen(that) they decided |
| Subj. pluscuamp. | hubieran decidido(that) they had decided |
| Pret. anterior | hubieron decididothey had decided |
| Imperativo | decidandecide! |
| Imper. negativo | no decidandon't decide |
