Present — what is happening now, and what happens habitually
| yo | describoI describe | nosotros | describimoswe describe |
| tú | describesyou describe | vosotros | describísyou all describe |
| él/ella/Ud. | describehe/she describes | ellos/Uds. | describenthey describe |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he descritoI have described | nosotros | hemos descritowe have described |
| tú | has descritoyou have described | vosotros | habéis descritoyou all have described |
| él/ella/Ud. | ha descritohe/she has described | ellos/Uds. | han descritothey have described |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | describa(that) I describe | nosotros | describamos(that) we describe |
| tú | describas(that) you describe | vosotros | describáis(that) you all describe |
| él/ella/Ud. | describa(that) he/she describes | ellos/Uds. | describan(that) they describe |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya descrito(that) I have described | nosotros | hayamos descrito(that) we have described |
| tú | hayas descrito(that) you have described | vosotros | hayáis descrito(that) you all have described |
| él/ella/Ud. | haya descrito(that) he/she has described | ellos/Uds. | hayan descrito(that) they have described |
Preterite — a finished past action — it started, it ended
| yo | describíI described | nosotros | describimoswe described |
| tú | describisteyou described | vosotros | describisteisyou all described |
| él/ella/Ud. | describióhe/she described | ellos/Uds. | describieronthey described |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | describíaI used to describe | nosotros | describíamoswe used to describe |
| tú | describíasyou used to describe | vosotros | describíaisyou all used to describe |
| él/ella/Ud. | describíahe/she used to describe | ellos/Uds. | describíanthey used to describe |
Past perfect — had —ed; further back than another past event
| yo | había descritoI had described | nosotros | habíamos descritowe had described |
| tú | habías descritoyou had described | vosotros | habíais descritoyou all had described |
| él/ella/Ud. | había descritohe/she had described | ellos/Uds. | habían descritothey had described |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | describiera(that) I described | nosotros | describiéramos(that) we described |
| tú | describieras(that) you described | vosotros | describierais(that) you all described |
| él/ella/Ud. | describiera(that) he/she described | ellos/Uds. | describieran(that) they described |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | describiese(that) I described | nosotros | describiésemos(that) we described |
| tú | describieses(that) you described | vosotros | describieseis(that) you all described |
| él/ella/Ud. | describiese(that) he/she described | ellos/Uds. | describiesen(that) they described |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera descrito(that) I had described | nosotros | hubiéramos descrito(that) we had described |
| tú | hubieras descrito(that) you had described | vosotros | hubierais descrito(that) you all had described |
| él/ella/Ud. | hubiera descrito(that) he/she had described | ellos/Uds. | hubieran descrito(that) they had described |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube descritoI had described | nosotros | hubimos descritowe had described |
| tú | hubiste descritoyou had described | vosotros | hubisteis descritoyou all had described |
| él/ella/Ud. | hubo descritohe/she had described | ellos/Uds. | hubieron descritothey had described |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | describiréI will describe | nosotros | describiremoswe will describe |
| tú | describirásyou will describe | vosotros | describiréisyou all will describe |
| él/ella/Ud. | describiráhe/she will describe | ellos/Uds. | describiránthey will describe |
Conditional — would —; also softens a request into politeness
| yo | describiríaI would describe | nosotros | describiríamoswe would describe |
| tú | describiríasyou would describe | vosotros | describiríaisyou all would describe |
| él/ella/Ud. | describiríahe/she would describe | ellos/Uds. | describiríanthey would describe |
Future perfect — will have —ed; done by some future point
| yo | habré descritoI will have described | nosotros | habremos descritowe will have described |
| tú | habrás descritoyou will have described | vosotros | habréis descritoyou all will have described |
| él/ella/Ud. | habrá descritohe/she will have described | ellos/Uds. | habrán descritothey will have described |
Conditional perfect — would have —ed; the road not taken
| yo | habría descritoI would have described | nosotros | habríamos descritowe would have described |
| tú | habrías descritoyou would have described | vosotros | habríais descritoyou all would have described |
| él/ella/Ud. | habría descritohe/she would have described | ellos/Uds. | habrían descritothey would have described |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | describiere(should) I describe | nosotros | describiéremos(should) we describe |
| tú | describieres(should) you describe | vosotros | describiereis(should) you all describe |
| él/ella/Ud. | describiere(should) he/she describe | ellos/Uds. | describieren(should) they describe |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | describamoslet's describe |
| tú | describedescribe! | vosotros | describiddescribe! |
| él/ella/Ud. | describadescribe! | ellos/Uds. | describandescribe! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no describamoslet's not describe |
| tú | no describasdon't describe | vosotros | no describáisdon't describe |
| él/ella/Ud. | no describadon't describe | ellos/Uds. | no describandon't describe |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.
I — the speaker
| Presente | describoI describe |
| Perfecto | he descritoI have described |
| Subj. presente | describa(that) I describe |
| Subj. perfecto | haya descrito(that) I have described |
| Futuro | describiréI will describe |
| Condicional | describiríaI would describe |
| Fut. perfecto | habré descritoI will have described |
| Cond. perfecto | habría descritoI would have described |
| Subj. futuro | describiere(should) I describe |
| Indefinido | describíI described |
| Imperfecto | describíaI used to describe |
| Pluscuamp. | había descritoI had described |
| Subj. imperf. | describiera(that) I described |
| Subj. -se | describiese(that) I described |
| Subj. pluscuamp. | hubiera descrito(that) I had described |
| Pret. anterior | hube descritoI had described |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | describimoswe describe |
| Perfecto | hemos descritowe have described |
| Subj. presente | describamos(that) we describe |
| Subj. perfecto | hayamos descrito(that) we have described |
| Futuro | describiremoswe will describe |
| Condicional | describiríamoswe would describe |
| Fut. perfecto | habremos descritowe will have described |
| Cond. perfecto | habríamos descritowe would have described |
| Subj. futuro | describiéremos(should) we describe |
| Indefinido | describimoswe described |
| Imperfecto | describíamoswe used to describe |
| Pluscuamp. | habíamos descritowe had described |
| Subj. imperf. | describiéramos(that) we described |
| Subj. -se | describiésemos(that) we described |
| Subj. pluscuamp. | hubiéramos descrito(that) we had described |
| Pret. anterior | hubimos descritowe had described |
| Imperativo | describamoslet's describe |
| Imper. negativo | no describamoslet's not describe |
you (informal) — one person you are familiar with
| Presente | describesyou describe |
| Perfecto | has descritoyou have described |
| Subj. presente | describas(that) you describe |
| Subj. perfecto | hayas descrito(that) you have described |
| Futuro | describirásyou will describe |
| Condicional | describiríasyou would describe |
| Fut. perfecto | habrás descritoyou will have described |
| Cond. perfecto | habrías descritoyou would have described |
| Subj. futuro | describieres(should) you describe |
| Indefinido | describisteyou described |
| Imperfecto | describíasyou used to describe |
| Pluscuamp. | habías descritoyou had described |
| Subj. imperf. | describieras(that) you described |
| Subj. -se | describieses(that) you described |
| Subj. pluscuamp. | hubieras descrito(that) you had described |
| Pret. anterior | hubiste descritoyou had described |
| Imperativo | describedescribe! |
| Imper. negativo | no describasdon't describe |
you all — informal plural, Spain only
| Presente | describísyou all describe |
| Perfecto | habéis descritoyou all have described |
| Subj. presente | describáis(that) you all describe |
| Subj. perfecto | hayáis descrito(that) you all have described |
| Futuro | describiréisyou all will describe |
| Condicional | describiríaisyou all would describe |
| Fut. perfecto | habréis descritoyou all will have described |
| Cond. perfecto | habríais descritoyou all would have described |
| Subj. futuro | describiereis(should) you all describe |
| Indefinido | describisteisyou all described |
| Imperfecto | describíaisyou all used to describe |
| Pluscuamp. | habíais descritoyou all had described |
| Subj. imperf. | describierais(that) you all described |
| Subj. -se | describieseis(that) you all described |
| Subj. pluscuamp. | hubierais descrito(that) you all had described |
| Pret. anterior | hubisteis descritoyou all had described |
| Imperativo | describiddescribe! |
| Imper. negativo | no describáisdon't describe |
he, she, you (formal) — one other person — formal you shares it
| Presente | describehe/she describes |
| Perfecto | ha descritohe/she has described |
| Subj. presente | describa(that) he/she describes |
| Subj. perfecto | haya descrito(that) he/she has described |
| Futuro | describiráhe/she will describe |
| Condicional | describiríahe/she would describe |
| Fut. perfecto | habrá descritohe/she will have described |
| Cond. perfecto | habría descritohe/she would have described |
| Subj. futuro | describiere(should) he/she describe |
| Indefinido | describióhe/she described |
| Imperfecto | describíahe/she used to describe |
| Pluscuamp. | había descritohe/she had described |
| Subj. imperf. | describiera(that) he/she described |
| Subj. -se | describiese(that) he/she described |
| Subj. pluscuamp. | hubiera descrito(that) he/she had described |
| Pret. anterior | hubo descritohe/she had described |
| Imperativo | describadescribe! |
| Imper. negativo | no describadon't describe |
they, you all — several others — plural you shares it
| Presente | describenthey describe |
| Perfecto | han descritothey have described |
| Subj. presente | describan(that) they describe |
| Subj. perfecto | hayan descrito(that) they have described |
| Futuro | describiránthey will describe |
| Condicional | describiríanthey would describe |
| Fut. perfecto | habrán descritothey will have described |
| Cond. perfecto | habrían descritothey would have described |
| Subj. futuro | describieren(should) they describe |
| Indefinido | describieronthey described |
| Imperfecto | describíanthey used to describe |
| Pluscuamp. | habían descritothey had described |
| Subj. imperf. | describieran(that) they described |
| Subj. -se | describiesen(that) they described |
| Subj. pluscuamp. | hubieran descrito(that) they had described |
| Pret. anterior | hubieron descritothey had described |
| Imperativo | describandescribe! |
| Imper. negativo | no describandon't describe |

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