Present — what is happening now, and what happens habitually
| yo | propongoI propose | nosotros | proponemoswe propose |
| tú | proponesyou propose | vosotros | proponéisyou all propose |
| él/ella/Ud. | proponehe/she proposes | ellos/Uds. | proponenthey propose |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he propuestoI have proposed | nosotros | hemos propuestowe have proposed |
| tú | has propuestoyou have proposed | vosotros | habéis propuestoyou all have proposed |
| él/ella/Ud. | ha propuestohe/she has proposed | ellos/Uds. | han propuestothey have proposed |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | proponga(that) I propose | nosotros | propongamos(that) we propose |
| tú | propongas(that) you propose | vosotros | propongáis(that) you all propose |
| él/ella/Ud. | proponga(that) he/she proposes | ellos/Uds. | propongan(that) they propose |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya propuesto(that) I have proposed | nosotros | hayamos propuesto(that) we have proposed |
| tú | hayas propuesto(that) you have proposed | vosotros | hayáis propuesto(that) you all have proposed |
| él/ella/Ud. | haya propuesto(that) he/she has proposed | ellos/Uds. | hayan propuesto(that) they have proposed |
Preterite — a finished past action — it started, it ended
| yo | propuseI proposed | nosotros | propusimoswe proposed |
| tú | propusisteyou proposed | vosotros | propusisteisyou all proposed |
| él/ella/Ud. | propusohe/she proposed | ellos/Uds. | propusieronthey proposed |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | proponíaI used to propose | nosotros | proponíamoswe used to propose |
| tú | proponíasyou used to propose | vosotros | proponíaisyou all used to propose |
| él/ella/Ud. | proponíahe/she used to propose | ellos/Uds. | proponíanthey used to propose |
Past perfect — had —ed; further back than another past event
| yo | había propuestoI had proposed | nosotros | habíamos propuestowe had proposed |
| tú | habías propuestoyou had proposed | vosotros | habíais propuestoyou all had proposed |
| él/ella/Ud. | había propuestohe/she had proposed | ellos/Uds. | habían propuestothey had proposed |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | propusiera(that) I proposed | nosotros | propusiéramos(that) we proposed |
| tú | propusieras(that) you proposed | vosotros | propusierais(that) you all proposed |
| él/ella/Ud. | propusiera(that) he/she proposed | ellos/Uds. | propusieran(that) they proposed |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | propusiese(that) I proposed | nosotros | propusiésemos(that) we proposed |
| tú | propusieses(that) you proposed | vosotros | propusieseis(that) you all proposed |
| él/ella/Ud. | propusiese(that) he/she proposed | ellos/Uds. | propusiesen(that) they proposed |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera propuesto(that) I had proposed | nosotros | hubiéramos propuesto(that) we had proposed |
| tú | hubieras propuesto(that) you had proposed | vosotros | hubierais propuesto(that) you all had proposed |
| él/ella/Ud. | hubiera propuesto(that) he/she had proposed | ellos/Uds. | hubieran propuesto(that) they had proposed |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube propuestoI had proposed | nosotros | hubimos propuestowe had proposed |
| tú | hubiste propuestoyou had proposed | vosotros | hubisteis propuestoyou all had proposed |
| él/ella/Ud. | hubo propuestohe/she had proposed | ellos/Uds. | hubieron propuestothey had proposed |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | propondréI will propose | nosotros | propondremoswe will propose |
| tú | propondrásyou will propose | vosotros | propondréisyou all will propose |
| él/ella/Ud. | propondráhe/she will propose | ellos/Uds. | propondránthey will propose |
Conditional — would —; also softens a request into politeness
| yo | propondríaI would propose | nosotros | propondríamoswe would propose |
| tú | propondríasyou would propose | vosotros | propondríaisyou all would propose |
| él/ella/Ud. | propondríahe/she would propose | ellos/Uds. | propondríanthey would propose |
Future perfect — will have —ed; done by some future point
| yo | habré propuestoI will have proposed | nosotros | habremos propuestowe will have proposed |
| tú | habrás propuestoyou will have proposed | vosotros | habréis propuestoyou all will have proposed |
| él/ella/Ud. | habrá propuestohe/she will have proposed | ellos/Uds. | habrán propuestothey will have proposed |
Conditional perfect — would have —ed; the road not taken
| yo | habría propuestoI would have proposed | nosotros | habríamos propuestowe would have proposed |
| tú | habrías propuestoyou would have proposed | vosotros | habríais propuestoyou all would have proposed |
| él/ella/Ud. | habría propuestohe/she would have proposed | ellos/Uds. | habrían propuestothey would have proposed |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | propusiere(should) I propose | nosotros | propusiéremos(should) we propose |
| tú | propusieres(should) you propose | vosotros | propusiereis(should) you all propose |
| él/ella/Ud. | propusiere(should) he/she propose | ellos/Uds. | propusieren(should) they propose |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | propongamoslet's propose |
| tú | propónpropose! | vosotros | proponedpropose! |
| él/ella/Ud. | propongapropose! | ellos/Uds. | proponganpropose! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no propongamoslet's not propose |
| tú | no propongasdon't propose | vosotros | no propongáisdon't propose |
| él/ella/Ud. | no propongadon't propose | ellos/Uds. | no propongandon't propose |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.
I — the speaker
| Presente | propongoI propose |
| Perfecto | he propuestoI have proposed |
| Subj. presente | proponga(that) I propose |
| Subj. perfecto | haya propuesto(that) I have proposed |
| Futuro | propondréI will propose |
| Condicional | propondríaI would propose |
| Fut. perfecto | habré propuestoI will have proposed |
| Cond. perfecto | habría propuestoI would have proposed |
| Subj. futuro | propusiere(should) I propose |
| Indefinido | propuseI proposed |
| Imperfecto | proponíaI used to propose |
| Pluscuamp. | había propuestoI had proposed |
| Subj. imperf. | propusiera(that) I proposed |
| Subj. -se | propusiese(that) I proposed |
| Subj. pluscuamp. | hubiera propuesto(that) I had proposed |
| Pret. anterior | hube propuestoI had proposed |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | proponemoswe propose |
| Perfecto | hemos propuestowe have proposed |
| Subj. presente | propongamos(that) we propose |
| Subj. perfecto | hayamos propuesto(that) we have proposed |
| Futuro | propondremoswe will propose |
| Condicional | propondríamoswe would propose |
| Fut. perfecto | habremos propuestowe will have proposed |
| Cond. perfecto | habríamos propuestowe would have proposed |
| Subj. futuro | propusiéremos(should) we propose |
| Indefinido | propusimoswe proposed |
| Imperfecto | proponíamoswe used to propose |
| Pluscuamp. | habíamos propuestowe had proposed |
| Subj. imperf. | propusiéramos(that) we proposed |
| Subj. -se | propusiésemos(that) we proposed |
| Subj. pluscuamp. | hubiéramos propuesto(that) we had proposed |
| Pret. anterior | hubimos propuestowe had proposed |
| Imperativo | propongamoslet's propose |
| Imper. negativo | no propongamoslet's not propose |
you (informal) — one person you are familiar with
| Presente | proponesyou propose |
| Perfecto | has propuestoyou have proposed |
| Subj. presente | propongas(that) you propose |
| Subj. perfecto | hayas propuesto(that) you have proposed |
| Futuro | propondrásyou will propose |
| Condicional | propondríasyou would propose |
| Fut. perfecto | habrás propuestoyou will have proposed |
| Cond. perfecto | habrías propuestoyou would have proposed |
| Subj. futuro | propusieres(should) you propose |
| Indefinido | propusisteyou proposed |
| Imperfecto | proponíasyou used to propose |
| Pluscuamp. | habías propuestoyou had proposed |
| Subj. imperf. | propusieras(that) you proposed |
| Subj. -se | propusieses(that) you proposed |
| Subj. pluscuamp. | hubieras propuesto(that) you had proposed |
| Pret. anterior | hubiste propuestoyou had proposed |
| Imperativo | propónpropose! |
| Imper. negativo | no propongasdon't propose |
you all — informal plural, Spain only
| Presente | proponéisyou all propose |
| Perfecto | habéis propuestoyou all have proposed |
| Subj. presente | propongáis(that) you all propose |
| Subj. perfecto | hayáis propuesto(that) you all have proposed |
| Futuro | propondréisyou all will propose |
| Condicional | propondríaisyou all would propose |
| Fut. perfecto | habréis propuestoyou all will have proposed |
| Cond. perfecto | habríais propuestoyou all would have proposed |
| Subj. futuro | propusiereis(should) you all propose |
| Indefinido | propusisteisyou all proposed |
| Imperfecto | proponíaisyou all used to propose |
| Pluscuamp. | habíais propuestoyou all had proposed |
| Subj. imperf. | propusierais(that) you all proposed |
| Subj. -se | propusieseis(that) you all proposed |
| Subj. pluscuamp. | hubierais propuesto(that) you all had proposed |
| Pret. anterior | hubisteis propuestoyou all had proposed |
| Imperativo | proponedpropose! |
| Imper. negativo | no propongáisdon't propose |
he, she, you (formal) — one other person — formal you shares it
| Presente | proponehe/she proposes |
| Perfecto | ha propuestohe/she has proposed |
| Subj. presente | proponga(that) he/she proposes |
| Subj. perfecto | haya propuesto(that) he/she has proposed |
| Futuro | propondráhe/she will propose |
| Condicional | propondríahe/she would propose |
| Fut. perfecto | habrá propuestohe/she will have proposed |
| Cond. perfecto | habría propuestohe/she would have proposed |
| Subj. futuro | propusiere(should) he/she propose |
| Indefinido | propusohe/she proposed |
| Imperfecto | proponíahe/she used to propose |
| Pluscuamp. | había propuestohe/she had proposed |
| Subj. imperf. | propusiera(that) he/she proposed |
| Subj. -se | propusiese(that) he/she proposed |
| Subj. pluscuamp. | hubiera propuesto(that) he/she had proposed |
| Pret. anterior | hubo propuestohe/she had proposed |
| Imperativo | propongapropose! |
| Imper. negativo | no propongadon't propose |
they, you all — several others — plural you shares it
| Presente | proponenthey propose |
| Perfecto | han propuestothey have proposed |
| Subj. presente | propongan(that) they propose |
| Subj. perfecto | hayan propuesto(that) they have proposed |
| Futuro | propondránthey will propose |
| Condicional | propondríanthey would propose |
| Fut. perfecto | habrán propuestothey will have proposed |
| Cond. perfecto | habrían propuestothey would have proposed |
| Subj. futuro | propusieren(should) they propose |
| Indefinido | propusieronthey proposed |
| Imperfecto | proponíanthey used to propose |
| Pluscuamp. | habían propuestothey had proposed |
| Subj. imperf. | propusieran(that) they proposed |
| Subj. -se | propusiesen(that) they proposed |
| Subj. pluscuamp. | hubieran propuesto(that) they had proposed |
| Pret. anterior | hubieron propuestothey had proposed |
| Imperativo | proponganpropose! |
| Imper. negativo | no propongandon't propose |

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