Present — what is happening now, and what happens habitually
| yo | resuelvoI solve | nosotros | resolvemoswe solve |
| tú | resuelvesyou solve | vosotros | resolvéisyou all solve |
| él/ella/Ud. | resuelvehe/she solves | ellos/Uds. | resuelventhey solve |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he resueltoI have solved | nosotros | hemos resueltowe have solved |
| tú | has resueltoyou have solved | vosotros | habéis resueltoyou all have solved |
| él/ella/Ud. | ha resueltohe/she has solved | ellos/Uds. | han resueltothey have solved |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | resuelva(that) I solve | nosotros | resolvamos(that) we solve |
| tú | resuelvas(that) you solve | vosotros | resolváis(that) you all solve |
| él/ella/Ud. | resuelva(that) he/she solves | ellos/Uds. | resuelvan(that) they solve |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya resuelto(that) I have solved | nosotros | hayamos resuelto(that) we have solved |
| tú | hayas resuelto(that) you have solved | vosotros | hayáis resuelto(that) you all have solved |
| él/ella/Ud. | haya resuelto(that) he/she has solved | ellos/Uds. | hayan resuelto(that) they have solved |
Preterite — a finished past action — it started, it ended
| yo | resolvíI solved | nosotros | resolvimoswe solved |
| tú | resolvisteyou solved | vosotros | resolvisteisyou all solved |
| él/ella/Ud. | resolvióhe/she solved | ellos/Uds. | resolvieronthey solved |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | resolvíaI used to solve | nosotros | resolvíamoswe used to solve |
| tú | resolvíasyou used to solve | vosotros | resolvíaisyou all used to solve |
| él/ella/Ud. | resolvíahe/she used to solve | ellos/Uds. | resolvíanthey used to solve |
Past perfect — had —ed; further back than another past event
| yo | había resueltoI had solved | nosotros | habíamos resueltowe had solved |
| tú | habías resueltoyou had solved | vosotros | habíais resueltoyou all had solved |
| él/ella/Ud. | había resueltohe/she had solved | ellos/Uds. | habían resueltothey had solved |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | resolviera(that) I solved | nosotros | resolviéramos(that) we solved |
| tú | resolvieras(that) you solved | vosotros | resolvierais(that) you all solved |
| él/ella/Ud. | resolviera(that) he/she solved | ellos/Uds. | resolvieran(that) they solved |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | resolviese(that) I solved | nosotros | resolviésemos(that) we solved |
| tú | resolvieses(that) you solved | vosotros | resolvieseis(that) you all solved |
| él/ella/Ud. | resolviese(that) he/she solved | ellos/Uds. | resolviesen(that) they solved |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera resuelto(that) I had solved | nosotros | hubiéramos resuelto(that) we had solved |
| tú | hubieras resuelto(that) you had solved | vosotros | hubierais resuelto(that) you all had solved |
| él/ella/Ud. | hubiera resuelto(that) he/she had solved | ellos/Uds. | hubieran resuelto(that) they had solved |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube resueltoI had solved | nosotros | hubimos resueltowe had solved |
| tú | hubiste resueltoyou had solved | vosotros | hubisteis resueltoyou all had solved |
| él/ella/Ud. | hubo resueltohe/she had solved | ellos/Uds. | hubieron resueltothey had solved |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | resolveréI will solve | nosotros | resolveremoswe will solve |
| tú | resolverásyou will solve | vosotros | resolveréisyou all will solve |
| él/ella/Ud. | resolveráhe/she will solve | ellos/Uds. | resolveránthey will solve |
Conditional — would —; also softens a request into politeness
| yo | resolveríaI would solve | nosotros | resolveríamoswe would solve |
| tú | resolveríasyou would solve | vosotros | resolveríaisyou all would solve |
| él/ella/Ud. | resolveríahe/she would solve | ellos/Uds. | resolveríanthey would solve |
Future perfect — will have —ed; done by some future point
| yo | habré resueltoI will have solved | nosotros | habremos resueltowe will have solved |
| tú | habrás resueltoyou will have solved | vosotros | habréis resueltoyou all will have solved |
| él/ella/Ud. | habrá resueltohe/she will have solved | ellos/Uds. | habrán resueltothey will have solved |
Conditional perfect — would have —ed; the road not taken
| yo | habría resueltoI would have solved | nosotros | habríamos resueltowe would have solved |
| tú | habrías resueltoyou would have solved | vosotros | habríais resueltoyou all would have solved |
| él/ella/Ud. | habría resueltohe/she would have solved | ellos/Uds. | habrían resueltothey would have solved |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | resolviere(should) I solve | nosotros | resolviéremos(should) we solve |
| tú | resolvieres(should) you solve | vosotros | resolviereis(should) you all solve |
| él/ella/Ud. | resolviere(should) he/she solve | ellos/Uds. | resolvieren(should) they solve |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | resolvamoslet's solve |
| tú | resuelvesolve! | vosotros | resolvedsolve! |
| él/ella/Ud. | resuelvasolve! | ellos/Uds. | resuelvansolve! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no resolvamoslet's not solve |
| tú | no resuelvasdon't solve | vosotros | no resolváisdon't solve |
| él/ella/Ud. | no resuelvadon't solve | ellos/Uds. | no resuelvandon't solve |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.
I — the speaker
| Presente | resuelvoI solve |
| Perfecto | he resueltoI have solved |
| Subj. presente | resuelva(that) I solve |
| Subj. perfecto | haya resuelto(that) I have solved |
| Futuro | resolveréI will solve |
| Condicional | resolveríaI would solve |
| Fut. perfecto | habré resueltoI will have solved |
| Cond. perfecto | habría resueltoI would have solved |
| Subj. futuro | resolviere(should) I solve |
| Indefinido | resolvíI solved |
| Imperfecto | resolvíaI used to solve |
| Pluscuamp. | había resueltoI had solved |
| Subj. imperf. | resolviera(that) I solved |
| Subj. -se | resolviese(that) I solved |
| Subj. pluscuamp. | hubiera resuelto(that) I had solved |
| Pret. anterior | hube resueltoI had solved |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | resolvemoswe solve |
| Perfecto | hemos resueltowe have solved |
| Subj. presente | resolvamos(that) we solve |
| Subj. perfecto | hayamos resuelto(that) we have solved |
| Futuro | resolveremoswe will solve |
| Condicional | resolveríamoswe would solve |
| Fut. perfecto | habremos resueltowe will have solved |
| Cond. perfecto | habríamos resueltowe would have solved |
| Subj. futuro | resolviéremos(should) we solve |
| Indefinido | resolvimoswe solved |
| Imperfecto | resolvíamoswe used to solve |
| Pluscuamp. | habíamos resueltowe had solved |
| Subj. imperf. | resolviéramos(that) we solved |
| Subj. -se | resolviésemos(that) we solved |
| Subj. pluscuamp. | hubiéramos resuelto(that) we had solved |
| Pret. anterior | hubimos resueltowe had solved |
| Imperativo | resolvamoslet's solve |
| Imper. negativo | no resolvamoslet's not solve |
you (informal) — one person you are familiar with
| Presente | resuelvesyou solve |
| Perfecto | has resueltoyou have solved |
| Subj. presente | resuelvas(that) you solve |
| Subj. perfecto | hayas resuelto(that) you have solved |
| Futuro | resolverásyou will solve |
| Condicional | resolveríasyou would solve |
| Fut. perfecto | habrás resueltoyou will have solved |
| Cond. perfecto | habrías resueltoyou would have solved |
| Subj. futuro | resolvieres(should) you solve |
| Indefinido | resolvisteyou solved |
| Imperfecto | resolvíasyou used to solve |
| Pluscuamp. | habías resueltoyou had solved |
| Subj. imperf. | resolvieras(that) you solved |
| Subj. -se | resolvieses(that) you solved |
| Subj. pluscuamp. | hubieras resuelto(that) you had solved |
| Pret. anterior | hubiste resueltoyou had solved |
| Imperativo | resuelvesolve! |
| Imper. negativo | no resuelvasdon't solve |
you all — informal plural, Spain only
| Presente | resolvéisyou all solve |
| Perfecto | habéis resueltoyou all have solved |
| Subj. presente | resolváis(that) you all solve |
| Subj. perfecto | hayáis resuelto(that) you all have solved |
| Futuro | resolveréisyou all will solve |
| Condicional | resolveríaisyou all would solve |
| Fut. perfecto | habréis resueltoyou all will have solved |
| Cond. perfecto | habríais resueltoyou all would have solved |
| Subj. futuro | resolviereis(should) you all solve |
| Indefinido | resolvisteisyou all solved |
| Imperfecto | resolvíaisyou all used to solve |
| Pluscuamp. | habíais resueltoyou all had solved |
| Subj. imperf. | resolvierais(that) you all solved |
| Subj. -se | resolvieseis(that) you all solved |
| Subj. pluscuamp. | hubierais resuelto(that) you all had solved |
| Pret. anterior | hubisteis resueltoyou all had solved |
| Imperativo | resolvedsolve! |
| Imper. negativo | no resolváisdon't solve |
he, she, you (formal) — one other person — formal you shares it
| Presente | resuelvehe/she solves |
| Perfecto | ha resueltohe/she has solved |
| Subj. presente | resuelva(that) he/she solves |
| Subj. perfecto | haya resuelto(that) he/she has solved |
| Futuro | resolveráhe/she will solve |
| Condicional | resolveríahe/she would solve |
| Fut. perfecto | habrá resueltohe/she will have solved |
| Cond. perfecto | habría resueltohe/she would have solved |
| Subj. futuro | resolviere(should) he/she solve |
| Indefinido | resolvióhe/she solved |
| Imperfecto | resolvíahe/she used to solve |
| Pluscuamp. | había resueltohe/she had solved |
| Subj. imperf. | resolviera(that) he/she solved |
| Subj. -se | resolviese(that) he/she solved |
| Subj. pluscuamp. | hubiera resuelto(that) he/she had solved |
| Pret. anterior | hubo resueltohe/she had solved |
| Imperativo | resuelvasolve! |
| Imper. negativo | no resuelvadon't solve |
they, you all — several others — plural you shares it
| Presente | resuelventhey solve |
| Perfecto | han resueltothey have solved |
| Subj. presente | resuelvan(that) they solve |
| Subj. perfecto | hayan resuelto(that) they have solved |
| Futuro | resolveránthey will solve |
| Condicional | resolveríanthey would solve |
| Fut. perfecto | habrán resueltothey will have solved |
| Cond. perfecto | habrían resueltothey would have solved |
| Subj. futuro | resolvieren(should) they solve |
| Indefinido | resolvieronthey solved |
| Imperfecto | resolvíanthey used to solve |
| Pluscuamp. | habían resueltothey had solved |
| Subj. imperf. | resolvieran(that) they solved |
| Subj. -se | resolviesen(that) they solved |
| Subj. pluscuamp. | hubieran resuelto(that) they had solved |
| Pret. anterior | hubieron resueltothey had solved |
| Imperativo | resuelvansolve! |
| Imper. negativo | no resuelvandon't solve |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.