Present — what is happening now, and what happens habitually
| yo | aumentoI increase | nosotros | aumentamoswe increase |
| tú | aumentasyou increase | vosotros | aumentáisyou all increase |
| él/ella/Ud. | aumentahe/she increases | ellos/Uds. | aumentanthey increase |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he aumentadoI have increased | nosotros | hemos aumentadowe have increased |
| tú | has aumentadoyou have increased | vosotros | habéis aumentadoyou all have increased |
| él/ella/Ud. | ha aumentadohe/she has increased | ellos/Uds. | han aumentadothey have increased |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | aumente(that) I increase | nosotros | aumentemos(that) we increase |
| tú | aumentes(that) you increase | vosotros | aumentéis(that) you all increase |
| él/ella/Ud. | aumente(that) he/she increases | ellos/Uds. | aumenten(that) they increase |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya aumentado(that) I have increased | nosotros | hayamos aumentado(that) we have increased |
| tú | hayas aumentado(that) you have increased | vosotros | hayáis aumentado(that) you all have increased |
| él/ella/Ud. | haya aumentado(that) he/she has increased | ellos/Uds. | hayan aumentado(that) they have increased |
Preterite — a finished past action — it started, it ended
| yo | aumentéI increased | nosotros | aumentamoswe increased |
| tú | aumentasteyou increased | vosotros | aumentasteisyou all increased |
| él/ella/Ud. | aumentóhe/she increased | ellos/Uds. | aumentaronthey increased |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | aumentabaI used to increase | nosotros | aumentábamoswe used to increase |
| tú | aumentabasyou used to increase | vosotros | aumentabaisyou all used to increase |
| él/ella/Ud. | aumentabahe/she used to increase | ellos/Uds. | aumentabanthey used to increase |
Past perfect — had —ed; further back than another past event
| yo | había aumentadoI had increased | nosotros | habíamos aumentadowe had increased |
| tú | habías aumentadoyou had increased | vosotros | habíais aumentadoyou all had increased |
| él/ella/Ud. | había aumentadohe/she had increased | ellos/Uds. | habían aumentadothey had increased |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | aumentara(that) I increased | nosotros | aumentáramos(that) we increased |
| tú | aumentaras(that) you increased | vosotros | aumentarais(that) you all increased |
| él/ella/Ud. | aumentara(that) he/she increased | ellos/Uds. | aumentaran(that) they increased |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | aumentase(that) I increased | nosotros | aumentásemos(that) we increased |
| tú | aumentases(that) you increased | vosotros | aumentaseis(that) you all increased |
| él/ella/Ud. | aumentase(that) he/she increased | ellos/Uds. | aumentasen(that) they increased |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera aumentado(that) I had increased | nosotros | hubiéramos aumentado(that) we had increased |
| tú | hubieras aumentado(that) you had increased | vosotros | hubierais aumentado(that) you all had increased |
| él/ella/Ud. | hubiera aumentado(that) he/she had increased | ellos/Uds. | hubieran aumentado(that) they had increased |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube aumentadoI had increased | nosotros | hubimos aumentadowe had increased |
| tú | hubiste aumentadoyou had increased | vosotros | hubisteis aumentadoyou all had increased |
| él/ella/Ud. | hubo aumentadohe/she had increased | ellos/Uds. | hubieron aumentadothey had increased |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | aumentaréI will increase | nosotros | aumentaremoswe will increase |
| tú | aumentarásyou will increase | vosotros | aumentaréisyou all will increase |
| él/ella/Ud. | aumentaráhe/she will increase | ellos/Uds. | aumentaránthey will increase |
Conditional — would —; also softens a request into politeness
| yo | aumentaríaI would increase | nosotros | aumentaríamoswe would increase |
| tú | aumentaríasyou would increase | vosotros | aumentaríaisyou all would increase |
| él/ella/Ud. | aumentaríahe/she would increase | ellos/Uds. | aumentaríanthey would increase |
Future perfect — will have —ed; done by some future point
| yo | habré aumentadoI will have increased | nosotros | habremos aumentadowe will have increased |
| tú | habrás aumentadoyou will have increased | vosotros | habréis aumentadoyou all will have increased |
| él/ella/Ud. | habrá aumentadohe/she will have increased | ellos/Uds. | habrán aumentadothey will have increased |
Conditional perfect — would have —ed; the road not taken
| yo | habría aumentadoI would have increased | nosotros | habríamos aumentadowe would have increased |
| tú | habrías aumentadoyou would have increased | vosotros | habríais aumentadoyou all would have increased |
| él/ella/Ud. | habría aumentadohe/she would have increased | ellos/Uds. | habrían aumentadothey would have increased |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | aumentare(should) I increase | nosotros | aumentáremos(should) we increase |
| tú | aumentares(should) you increase | vosotros | aumentareis(should) you all increase |
| él/ella/Ud. | aumentare(should) he/she increase | ellos/Uds. | aumentaren(should) they increase |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | aumentemoslet's increase |
| tú | aumentaincrease! | vosotros | aumentadincrease! |
| él/ella/Ud. | aumenteincrease! | ellos/Uds. | aumentenincrease! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no aumentemoslet's not increase |
| tú | no aumentesdon't increase | vosotros | no aumentéisdon't increase |
| él/ella/Ud. | no aumentedon't increase | ellos/Uds. | no aumentendon't increase |

I — the speaker
| Presente | aumentoI increase |
| Perfecto | he aumentadoI have increased |
| Subj. presente | aumente(that) I increase |
| Subj. perfecto | haya aumentado(that) I have increased |
| Futuro | aumentaréI will increase |
| Condicional | aumentaríaI would increase |
| Fut. perfecto | habré aumentadoI will have increased |
| Cond. perfecto | habría aumentadoI would have increased |
| Subj. futuro | aumentare(should) I increase |
| Indefinido | aumentéI increased |
| Imperfecto | aumentabaI used to increase |
| Pluscuamp. | había aumentadoI had increased |
| Subj. imperf. | aumentara(that) I increased |
| Subj. -se | aumentase(that) I increased |
| Subj. pluscuamp. | hubiera aumentado(that) I had increased |
| Pret. anterior | hube aumentadoI had increased |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | aumentamoswe increase |
| Perfecto | hemos aumentadowe have increased |
| Subj. presente | aumentemos(that) we increase |
| Subj. perfecto | hayamos aumentado(that) we have increased |
| Futuro | aumentaremoswe will increase |
| Condicional | aumentaríamoswe would increase |
| Fut. perfecto | habremos aumentadowe will have increased |
| Cond. perfecto | habríamos aumentadowe would have increased |
| Subj. futuro | aumentáremos(should) we increase |
| Indefinido | aumentamoswe increased |
| Imperfecto | aumentábamoswe used to increase |
| Pluscuamp. | habíamos aumentadowe had increased |
| Subj. imperf. | aumentáramos(that) we increased |
| Subj. -se | aumentásemos(that) we increased |
| Subj. pluscuamp. | hubiéramos aumentado(that) we had increased |
| Pret. anterior | hubimos aumentadowe had increased |
| Imperativo | aumentemoslet's increase |
| Imper. negativo | no aumentemoslet's not increase |
you (informal) — one person you are familiar with
| Presente | aumentasyou increase |
| Perfecto | has aumentadoyou have increased |
| Subj. presente | aumentes(that) you increase |
| Subj. perfecto | hayas aumentado(that) you have increased |
| Futuro | aumentarásyou will increase |
| Condicional | aumentaríasyou would increase |
| Fut. perfecto | habrás aumentadoyou will have increased |
| Cond. perfecto | habrías aumentadoyou would have increased |
| Subj. futuro | aumentares(should) you increase |
| Indefinido | aumentasteyou increased |
| Imperfecto | aumentabasyou used to increase |
| Pluscuamp. | habías aumentadoyou had increased |
| Subj. imperf. | aumentaras(that) you increased |
| Subj. -se | aumentases(that) you increased |
| Subj. pluscuamp. | hubieras aumentado(that) you had increased |
| Pret. anterior | hubiste aumentadoyou had increased |
| Imperativo | aumentaincrease! |
| Imper. negativo | no aumentesdon't increase |
you all — informal plural, Spain only
| Presente | aumentáisyou all increase |
| Perfecto | habéis aumentadoyou all have increased |
| Subj. presente | aumentéis(that) you all increase |
| Subj. perfecto | hayáis aumentado(that) you all have increased |
| Futuro | aumentaréisyou all will increase |
| Condicional | aumentaríaisyou all would increase |
| Fut. perfecto | habréis aumentadoyou all will have increased |
| Cond. perfecto | habríais aumentadoyou all would have increased |
| Subj. futuro | aumentareis(should) you all increase |
| Indefinido | aumentasteisyou all increased |
| Imperfecto | aumentabaisyou all used to increase |
| Pluscuamp. | habíais aumentadoyou all had increased |
| Subj. imperf. | aumentarais(that) you all increased |
| Subj. -se | aumentaseis(that) you all increased |
| Subj. pluscuamp. | hubierais aumentado(that) you all had increased |
| Pret. anterior | hubisteis aumentadoyou all had increased |
| Imperativo | aumentadincrease! |
| Imper. negativo | no aumentéisdon't increase |
he, she, you (formal) — one other person — formal you shares it
| Presente | aumentahe/she increases |
| Perfecto | ha aumentadohe/she has increased |
| Subj. presente | aumente(that) he/she increases |
| Subj. perfecto | haya aumentado(that) he/she has increased |
| Futuro | aumentaráhe/she will increase |
| Condicional | aumentaríahe/she would increase |
| Fut. perfecto | habrá aumentadohe/she will have increased |
| Cond. perfecto | habría aumentadohe/she would have increased |
| Subj. futuro | aumentare(should) he/she increase |
| Indefinido | aumentóhe/she increased |
| Imperfecto | aumentabahe/she used to increase |
| Pluscuamp. | había aumentadohe/she had increased |
| Subj. imperf. | aumentara(that) he/she increased |
| Subj. -se | aumentase(that) he/she increased |
| Subj. pluscuamp. | hubiera aumentado(that) he/she had increased |
| Pret. anterior | hubo aumentadohe/she had increased |
| Imperativo | aumenteincrease! |
| Imper. negativo | no aumentedon't increase |
they, you all — several others — plural you shares it
| Presente | aumentanthey increase |
| Perfecto | han aumentadothey have increased |
| Subj. presente | aumenten(that) they increase |
| Subj. perfecto | hayan aumentado(that) they have increased |
| Futuro | aumentaránthey will increase |
| Condicional | aumentaríanthey would increase |
| Fut. perfecto | habrán aumentadothey will have increased |
| Cond. perfecto | habrían aumentadothey would have increased |
| Subj. futuro | aumentaren(should) they increase |
| Indefinido | aumentaronthey increased |
| Imperfecto | aumentabanthey used to increase |
| Pluscuamp. | habían aumentadothey had increased |
| Subj. imperf. | aumentaran(that) they increased |
| Subj. -se | aumentasen(that) they increased |
| Subj. pluscuamp. | hubieran aumentado(that) they had increased |
| Pret. anterior | hubieron aumentadothey had increased |
| Imperativo | aumentenincrease! |
| Imper. negativo | no aumentendon't increase |
