Present — what is happening now, and what happens habitually
| yo | sigoI follow | nosotros | seguimoswe follow |
| tú | siguesyou follow | vosotros | seguísyou all follow |
| él/ella/Ud. | siguehe/she follows | ellos/Uds. | siguenthey follow |
Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead
| yo | he seguidoI have followed | nosotros | hemos seguidowe have followed |
| tú | has seguidoyou have followed | vosotros | habéis seguidoyou all have followed |
| él/ella/Ud. | ha seguidohe/she has followed | ellos/Uds. | han seguidothey have followed |
Present subjunctive — after que with wishes, doubt, emotion, ojalá
| yo | siga(that) I follow | nosotros | sigamos(that) we follow |
| tú | sigas(that) you follow | vosotros | sigáis(that) you all follow |
| él/ella/Ud. | siga(that) he/she follows | ellos/Uds. | sigan(that) they follow |
Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido
| yo | haya seguido(that) I have followed | nosotros | hayamos seguido(that) we have followed |
| tú | hayas seguido(that) you have followed | vosotros | hayáis seguido(that) you all have followed |
| él/ella/Ud. | haya seguido(that) he/she has followed | ellos/Uds. | hayan seguido(that) they have followed |
Preterite — a finished past action — it started, it ended
| yo | seguíI followed | nosotros | seguimoswe followed |
| tú | seguisteyou followed | vosotros | seguisteisyou all followed |
| él/ella/Ud. | siguióhe/she followed | ellos/Uds. | siguieronthey followed |
Imperfect — used to / was —ing; background, habits, descriptions
| yo | seguíaI used to follow | nosotros | seguíamoswe used to follow |
| tú | seguíasyou used to follow | vosotros | seguíaisyou all used to follow |
| él/ella/Ud. | seguíahe/she used to follow | ellos/Uds. | seguíanthey used to follow |
Past perfect — had —ed; further back than another past event
| yo | había seguidoI had followed | nosotros | habíamos seguidowe had followed |
| tú | habías seguidoyou had followed | vosotros | habíais seguidoyou all had followed |
| él/ella/Ud. | había seguidohe/she had followed | ellos/Uds. | habían seguidothey had followed |
Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera
| yo | siguiera(that) I followed | nosotros | siguiéramos(that) we followed |
| tú | siguieras(that) you followed | vosotros | siguierais(that) you all followed |
| él/ella/Ud. | siguiera(that) he/she followed | ellos/Uds. | siguieran(that) they followed |
Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing
| yo | siguiese(that) I followed | nosotros | siguiésemos(that) we followed |
| tú | siguieses(that) you followed | vosotros | siguieseis(that) you all followed |
| él/ella/Ud. | siguiese(that) he/she followed | ellos/Uds. | siguiesen(that) they followed |
Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido
| yo | hubiera seguido(that) I had followed | nosotros | hubiéramos seguido(that) we had followed |
| tú | hubieras seguido(that) you had followed | vosotros | hubierais seguido(that) you all had followed |
| él/ella/Ud. | hubiera seguido(that) he/she had followed | ellos/Uds. | hubieran seguido(that) they had followed |
Preterite perfect — had —ed, immediately before; literary, all but extinct
| yo | hube seguidoI had followed | nosotros | hubimos seguidowe had followed |
| tú | hubiste seguidoyou had followed | vosotros | hubisteis seguidoyou all had followed |
| él/ella/Ud. | hubo seguidohe/she had followed | ellos/Uds. | hubieron seguidothey had followed |
Future — will — (spoken Spanish often prefers voy a + infinitivo)
| yo | seguiréI will follow | nosotros | seguiremoswe will follow |
| tú | seguirásyou will follow | vosotros | seguiréisyou all will follow |
| él/ella/Ud. | seguiráhe/she will follow | ellos/Uds. | seguiránthey will follow |
Conditional — would —; also softens a request into politeness
| yo | seguiríaI would follow | nosotros | seguiríamoswe would follow |
| tú | seguiríasyou would follow | vosotros | seguiríaisyou all would follow |
| él/ella/Ud. | seguiríahe/she would follow | ellos/Uds. | seguiríanthey would follow |
Future perfect — will have —ed; done by some future point
| yo | habré seguidoI will have followed | nosotros | habremos seguidowe will have followed |
| tú | habrás seguidoyou will have followed | vosotros | habréis seguidoyou all will have followed |
| él/ella/Ud. | habrá seguidohe/she will have followed | ellos/Uds. | habrán seguidothey will have followed |
Conditional perfect — would have —ed; the road not taken
| yo | habría seguidoI would have followed | nosotros | habríamos seguidowe would have followed |
| tú | habrías seguidoyou would have followed | vosotros | habríais seguidoyou all would have followed |
| él/ella/Ud. | habría seguidohe/she would have followed | ellos/Uds. | habrían seguidothey would have followed |
Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres
| yo | siguiere(should) I follow | nosotros | siguiéremos(should) we follow |
| tú | siguieres(should) you follow | vosotros | siguiereis(should) you all follow |
| él/ella/Ud. | siguiere(should) he/she follow | ellos/Uds. | siguieren(should) they follow |
Imperative (do it) — orders and requests; there is no yo form
| yo | — | nosotros | sigamoslet's follow |
| tú | siguefollow! | vosotros | seguidfollow! |
| él/ella/Ud. | sigafollow! | ellos/Uds. | siganfollow! |
Imperative (don't) — no + subjunctive — never the affirmative form with no in front
| yo | — | nosotros | no sigamoslet's not follow |
| tú | no sigasdon't follow | vosotros | no sigáisdon't follow |
| él/ella/Ud. | no sigadon't follow | ellos/Uds. | no sigandon't follow |

Red = the form breaks the regular pattern. Everything in black you could have worked out from the endings alone.
I — the speaker
| Presente | sigoI follow |
| Perfecto | he seguidoI have followed |
| Subj. presente | siga(that) I follow |
| Subj. perfecto | haya seguido(that) I have followed |
| Futuro | seguiréI will follow |
| Condicional | seguiríaI would follow |
| Fut. perfecto | habré seguidoI will have followed |
| Cond. perfecto | habría seguidoI would have followed |
| Subj. futuro | siguiere(should) I follow |
| Indefinido | seguíI followed |
| Imperfecto | seguíaI used to follow |
| Pluscuamp. | había seguidoI had followed |
| Subj. imperf. | siguiera(that) I followed |
| Subj. -se | siguiese(that) I followed |
| Subj. pluscuamp. | hubiera seguido(that) I had followed |
| Pret. anterior | hube seguidoI had followed |
| Imperativo | — |
| Imper. negativo | — |
we — the speaker plus others
| Presente | seguimoswe follow |
| Perfecto | hemos seguidowe have followed |
| Subj. presente | sigamos(that) we follow |
| Subj. perfecto | hayamos seguido(that) we have followed |
| Futuro | seguiremoswe will follow |
| Condicional | seguiríamoswe would follow |
| Fut. perfecto | habremos seguidowe will have followed |
| Cond. perfecto | habríamos seguidowe would have followed |
| Subj. futuro | siguiéremos(should) we follow |
| Indefinido | seguimoswe followed |
| Imperfecto | seguíamoswe used to follow |
| Pluscuamp. | habíamos seguidowe had followed |
| Subj. imperf. | siguiéramos(that) we followed |
| Subj. -se | siguiésemos(that) we followed |
| Subj. pluscuamp. | hubiéramos seguido(that) we had followed |
| Pret. anterior | hubimos seguidowe had followed |
| Imperativo | sigamoslet's follow |
| Imper. negativo | no sigamoslet's not follow |
you (informal) — one person you are familiar with
| Presente | siguesyou follow |
| Perfecto | has seguidoyou have followed |
| Subj. presente | sigas(that) you follow |
| Subj. perfecto | hayas seguido(that) you have followed |
| Futuro | seguirásyou will follow |
| Condicional | seguiríasyou would follow |
| Fut. perfecto | habrás seguidoyou will have followed |
| Cond. perfecto | habrías seguidoyou would have followed |
| Subj. futuro | siguieres(should) you follow |
| Indefinido | seguisteyou followed |
| Imperfecto | seguíasyou used to follow |
| Pluscuamp. | habías seguidoyou had followed |
| Subj. imperf. | siguieras(that) you followed |
| Subj. -se | siguieses(that) you followed |
| Subj. pluscuamp. | hubieras seguido(that) you had followed |
| Pret. anterior | hubiste seguidoyou had followed |
| Imperativo | siguefollow! |
| Imper. negativo | no sigasdon't follow |
you all — informal plural, Spain only
| Presente | seguísyou all follow |
| Perfecto | habéis seguidoyou all have followed |
| Subj. presente | sigáis(that) you all follow |
| Subj. perfecto | hayáis seguido(that) you all have followed |
| Futuro | seguiréisyou all will follow |
| Condicional | seguiríaisyou all would follow |
| Fut. perfecto | habréis seguidoyou all will have followed |
| Cond. perfecto | habríais seguidoyou all would have followed |
| Subj. futuro | siguiereis(should) you all follow |
| Indefinido | seguisteisyou all followed |
| Imperfecto | seguíaisyou all used to follow |
| Pluscuamp. | habíais seguidoyou all had followed |
| Subj. imperf. | siguierais(that) you all followed |
| Subj. -se | siguieseis(that) you all followed |
| Subj. pluscuamp. | hubierais seguido(that) you all had followed |
| Pret. anterior | hubisteis seguidoyou all had followed |
| Imperativo | seguidfollow! |
| Imper. negativo | no sigáisdon't follow |
he, she, you (formal) — one other person — formal you shares it
| Presente | siguehe/she follows |
| Perfecto | ha seguidohe/she has followed |
| Subj. presente | siga(that) he/she follows |
| Subj. perfecto | haya seguido(that) he/she has followed |
| Futuro | seguiráhe/she will follow |
| Condicional | seguiríahe/she would follow |
| Fut. perfecto | habrá seguidohe/she will have followed |
| Cond. perfecto | habría seguidohe/she would have followed |
| Subj. futuro | siguiere(should) he/she follow |
| Indefinido | siguióhe/she followed |
| Imperfecto | seguíahe/she used to follow |
| Pluscuamp. | había seguidohe/she had followed |
| Subj. imperf. | siguiera(that) he/she followed |
| Subj. -se | siguiese(that) he/she followed |
| Subj. pluscuamp. | hubiera seguido(that) he/she had followed |
| Pret. anterior | hubo seguidohe/she had followed |
| Imperativo | sigafollow! |
| Imper. negativo | no sigadon't follow |
they, you all — several others — plural you shares it
| Presente | siguenthey follow |
| Perfecto | han seguidothey have followed |
| Subj. presente | sigan(that) they follow |
| Subj. perfecto | hayan seguido(that) they have followed |
| Futuro | seguiránthey will follow |
| Condicional | seguiríanthey would follow |
| Fut. perfecto | habrán seguidothey will have followed |
| Cond. perfecto | habrían seguidothey would have followed |
| Subj. futuro | siguieren(should) they follow |
| Indefinido | siguieronthey followed |
| Imperfecto | seguíanthey used to follow |
| Pluscuamp. | habían seguidothey had followed |
| Subj. imperf. | siguieran(that) they followed |
| Subj. -se | siguiesen(that) they followed |
| Subj. pluscuamp. | hubieran seguido(that) they had followed |
| Pret. anterior | hubieron seguidothey had followed |
| Imperativo | siganfollow! |
| Imper. negativo | no sigandon't follow |

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