Present — what is happening now, and what happens habitually
| yo | obtengoI obtain | nosotros | obtenemoswe obtain |
| tú | obtienesyou obtain | vosotros | obtenéisyou all obtain |
| él/ella/Ud. | obtienehe/she obtains | ellos/Uds. | obtienenthey obtain |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he obtenidoI have obtained | nosotros | hemos obtenidowe have obtained |
| tú | has obtenidoyou have obtained | vosotros | habéis obtenidoyou all have obtained |
| él/ella/Ud. | ha obtenidohe/she has obtained | ellos/Uds. | han obtenidothey have obtained |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | obtenga(that) I obtain | nosotros | obtengamos(that) we obtain |
| tú | obtengas(that) you obtain | vosotros | obtengáis(that) you all obtain |
| él/ella/Ud. | obtenga(that) he/she obtains | ellos/Uds. | obtengan(that) they obtain |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya obtenido(that) I have obtained | nosotros | hayamos obtenido(that) we have obtained |
| tú | hayas obtenido(that) you have obtained | vosotros | hayáis obtenido(that) you all have obtained |
| él/ella/Ud. | haya obtenido(that) he/she has obtained | ellos/Uds. | hayan obtenido(that) they have obtained |
Preterite — a finished past action — it started, it ended
| yo | obtuveI obtained | nosotros | obtuvimoswe obtained |
| tú | obtuvisteyou obtained | vosotros | obtuvisteisyou all obtained |
| él/ella/Ud. | obtuvohe/she obtained | ellos/Uds. | obtuvieronthey obtained |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | obteníaI used to obtain | nosotros | obteníamoswe used to obtain |
| tú | obteníasyou used to obtain | vosotros | obteníaisyou all used to obtain |
| él/ella/Ud. | obteníahe/she used to obtain | ellos/Uds. | obteníanthey used to obtain |
Past perfect — had —ed; further back than another past event
| yo | había obtenidoI had obtained | nosotros | habíamos obtenidowe had obtained |
| tú | habías obtenidoyou had obtained | vosotros | habíais obtenidoyou all had obtained |
| él/ella/Ud. | había obtenidohe/she had obtained | ellos/Uds. | habían obtenidothey had obtained |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | obtuviera(that) I obtained | nosotros | obtuviéramos(that) we obtained |
| tú | obtuvieras(that) you obtained | vosotros | obtuvierais(that) you all obtained |
| él/ella/Ud. | obtuviera(that) he/she obtained | ellos/Uds. | obtuvieran(that) they obtained |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | obtuviese(that) I obtained | nosotros | obtuviésemos(that) we obtained |
| tú | obtuvieses(that) you obtained | vosotros | obtuvieseis(that) you all obtained |
| él/ella/Ud. | obtuviese(that) he/she obtained | ellos/Uds. | obtuviesen(that) they obtained |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera obtenido(that) I had obtained | nosotros | hubiéramos obtenido(that) we had obtained |
| tú | hubieras obtenido(that) you had obtained | vosotros | hubierais obtenido(that) you all had obtained |
| él/ella/Ud. | hubiera obtenido(that) he/she had obtained | ellos/Uds. | hubieran obtenido(that) they had obtained |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube obtenidoI had obtained | nosotros | hubimos obtenidowe had obtained |
| tú | hubiste obtenidoyou had obtained | vosotros | hubisteis obtenidoyou all had obtained |
| él/ella/Ud. | hubo obtenidohe/she had obtained | ellos/Uds. | hubieron obtenidothey had obtained |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | obtendréI will obtain | nosotros | obtendremoswe will obtain |
| tú | obtendrásyou will obtain | vosotros | obtendréisyou all will obtain |
| él/ella/Ud. | obtendráhe/she will obtain | ellos/Uds. | obtendránthey will obtain |
Conditional — would —; also softens a request into politeness
| yo | obtendríaI would obtain | nosotros | obtendríamoswe would obtain |
| tú | obtendríasyou would obtain | vosotros | obtendríaisyou all would obtain |
| él/ella/Ud. | obtendríahe/she would obtain | ellos/Uds. | obtendríanthey would obtain |
Future perfect — will have —ed; done by some future point
| yo | habré obtenidoI will have obtained | nosotros | habremos obtenidowe will have obtained |
| tú | habrás obtenidoyou will have obtained | vosotros | habréis obtenidoyou all will have obtained |
| él/ella/Ud. | habrá obtenidohe/she will have obtained | ellos/Uds. | habrán obtenidothey will have obtained |
Conditional perfect — would have —ed; the road not taken
| yo | habría obtenidoI would have obtained | nosotros | habríamos obtenidowe would have obtained |
| tú | habrías obtenidoyou would have obtained | vosotros | habríais obtenidoyou all would have obtained |
| él/ella/Ud. | habría obtenidohe/she would have obtained | ellos/Uds. | habrían obtenidothey would have obtained |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | obtuviere(should) I obtain | nosotros | obtuviéremos(should) we obtain |
| tú | obtuvieres(should) you obtain | vosotros | obtuviereis(should) you all obtain |
| él/ella/Ud. | obtuviere(should) he/she obtain | ellos/Uds. | obtuvieren(should) they obtain |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | obtengamoslet's obtain |
| tú | obténobtain! | vosotros | obtenedobtain! |
| él/ella/Ud. | obtengaobtain! | ellos/Uds. | obtenganobtain! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no obtengamoslet's not obtain |
| tú | no obtengasdon't obtain | vosotros | no obtengáisdon't obtain |
| él/ella/Ud. | no obtengadon't obtain | ellos/Uds. | no obtengandon't obtain |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.
I — the speaker
| Presente | obtengoI obtain |
| Perfecto | he obtenidoI have obtained |
| Subj. presente | obtenga(that) I obtain |
| Subj. perfecto | haya obtenido(that) I have obtained |
| Futuro | obtendréI will obtain |
| Condicional | obtendríaI would obtain |
| Fut. perfecto | habré obtenidoI will have obtained |
| Cond. perfecto | habría obtenidoI would have obtained |
| Subj. futuro | obtuviere(should) I obtain |
| Indefinido | obtuveI obtained |
| Imperfecto | obteníaI used to obtain |
| Pluscuamp. | había obtenidoI had obtained |
| Subj. imperf. | obtuviera(that) I obtained |
| Subj. -se | obtuviese(that) I obtained |
| Subj. pluscuamp. | hubiera obtenido(that) I had obtained |
| Pret. anterior | hube obtenidoI had obtained |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | obtenemoswe obtain |
| Perfecto | hemos obtenidowe have obtained |
| Subj. presente | obtengamos(that) we obtain |
| Subj. perfecto | hayamos obtenido(that) we have obtained |
| Futuro | obtendremoswe will obtain |
| Condicional | obtendríamoswe would obtain |
| Fut. perfecto | habremos obtenidowe will have obtained |
| Cond. perfecto | habríamos obtenidowe would have obtained |
| Subj. futuro | obtuviéremos(should) we obtain |
| Indefinido | obtuvimoswe obtained |
| Imperfecto | obteníamoswe used to obtain |
| Pluscuamp. | habíamos obtenidowe had obtained |
| Subj. imperf. | obtuviéramos(that) we obtained |
| Subj. -se | obtuviésemos(that) we obtained |
| Subj. pluscuamp. | hubiéramos obtenido(that) we had obtained |
| Pret. anterior | hubimos obtenidowe had obtained |
| Imperativo | obtengamoslet's obtain |
| Imper. negativo | no obtengamoslet's not obtain |
you (informal) — one person you are familiar with
| Presente | obtienesyou obtain |
| Perfecto | has obtenidoyou have obtained |
| Subj. presente | obtengas(that) you obtain |
| Subj. perfecto | hayas obtenido(that) you have obtained |
| Futuro | obtendrásyou will obtain |
| Condicional | obtendríasyou would obtain |
| Fut. perfecto | habrás obtenidoyou will have obtained |
| Cond. perfecto | habrías obtenidoyou would have obtained |
| Subj. futuro | obtuvieres(should) you obtain |
| Indefinido | obtuvisteyou obtained |
| Imperfecto | obteníasyou used to obtain |
| Pluscuamp. | habías obtenidoyou had obtained |
| Subj. imperf. | obtuvieras(that) you obtained |
| Subj. -se | obtuvieses(that) you obtained |
| Subj. pluscuamp. | hubieras obtenido(that) you had obtained |
| Pret. anterior | hubiste obtenidoyou had obtained |
| Imperativo | obténobtain! |
| Imper. negativo | no obtengasdon't obtain |
you all — informal plural, Spain only
| Presente | obtenéisyou all obtain |
| Perfecto | habéis obtenidoyou all have obtained |
| Subj. presente | obtengáis(that) you all obtain |
| Subj. perfecto | hayáis obtenido(that) you all have obtained |
| Futuro | obtendréisyou all will obtain |
| Condicional | obtendríaisyou all would obtain |
| Fut. perfecto | habréis obtenidoyou all will have obtained |
| Cond. perfecto | habríais obtenidoyou all would have obtained |
| Subj. futuro | obtuviereis(should) you all obtain |
| Indefinido | obtuvisteisyou all obtained |
| Imperfecto | obteníaisyou all used to obtain |
| Pluscuamp. | habíais obtenidoyou all had obtained |
| Subj. imperf. | obtuvierais(that) you all obtained |
| Subj. -se | obtuvieseis(that) you all obtained |
| Subj. pluscuamp. | hubierais obtenido(that) you all had obtained |
| Pret. anterior | hubisteis obtenidoyou all had obtained |
| Imperativo | obtenedobtain! |
| Imper. negativo | no obtengáisdon't obtain |
he, she, you (formal) — one other person — formal you shares it
| Presente | obtienehe/she obtains |
| Perfecto | ha obtenidohe/she has obtained |
| Subj. presente | obtenga(that) he/she obtains |
| Subj. perfecto | haya obtenido(that) he/she has obtained |
| Futuro | obtendráhe/she will obtain |
| Condicional | obtendríahe/she would obtain |
| Fut. perfecto | habrá obtenidohe/she will have obtained |
| Cond. perfecto | habría obtenidohe/she would have obtained |
| Subj. futuro | obtuviere(should) he/she obtain |
| Indefinido | obtuvohe/she obtained |
| Imperfecto | obteníahe/she used to obtain |
| Pluscuamp. | había obtenidohe/she had obtained |
| Subj. imperf. | obtuviera(that) he/she obtained |
| Subj. -se | obtuviese(that) he/she obtained |
| Subj. pluscuamp. | hubiera obtenido(that) he/she had obtained |
| Pret. anterior | hubo obtenidohe/she had obtained |
| Imperativo | obtengaobtain! |
| Imper. negativo | no obtengadon't obtain |
they, you all — several others — plural you shares it
| Presente | obtienenthey obtain |
| Perfecto | han obtenidothey have obtained |
| Subj. presente | obtengan(that) they obtain |
| Subj. perfecto | hayan obtenido(that) they have obtained |
| Futuro | obtendránthey will obtain |
| Condicional | obtendríanthey would obtain |
| Fut. perfecto | habrán obtenidothey will have obtained |
| Cond. perfecto | habrían obtenidothey would have obtained |
| Subj. futuro | obtuvieren(should) they obtain |
| Indefinido | obtuvieronthey obtained |
| Imperfecto | obteníanthey used to obtain |
| Pluscuamp. | habían obtenidothey had obtained |
| Subj. imperf. | obtuvieran(that) they obtained |
| Subj. -se | obtuviesen(that) they obtained |
| Subj. pluscuamp. | hubieran obtenido(that) they had obtained |
| Pret. anterior | hubieron obtenidothey had obtained |
| Imperativo | obtenganobtain! |
| Imper. negativo | no obtengandon't obtain |

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