seguir

to follow, to keep onpor tiempo-ir irregular
participio seguidogerundio siguiendohe + participio he seguidoestoy + gerundio estoy siguiendo

Presentewhat is going on now

Presente

Present — what is happening now, and what happens habitually

yosigoI follownosotrosseguimoswe follow
túsiguesyou followvosotrosseguísyou all follow
él/ella/Ud.siguehe/she followsellos/Uds.siguenthey follow

Pretérito perfecto

Present perfect — have —ed; a past still touching now. Spain: today, this week. Latin America: mostly the indefinido instead

yohe seguidoI have followednosotroshemos seguidowe have followed
túhas seguidoyou have followedvosotroshabéis seguidoyou all have followed
él/ella/Ud.ha seguidohe/she has followedellos/Uds.han seguidothey have followed

Presente de subjuntivo

Present subjunctive — after que with wishes, doubt, emotion, ojalá

yosiga(that) I follownosotrossigamos(that) we follow
túsigas(that) you followvosotrossigáis(that) you all follow
él/ella/Ud.siga(that) he/she followsellos/Uds.sigan(that) they follow

Perfecto de subjuntivo

Present perfect subjunctive — have —ed, under doubt or emotion: no creo que haya venido

yohaya seguido(that) I have followednosotroshayamos seguido(that) we have followed
túhayas seguido(that) you have followedvosotroshayáis seguido(that) you all have followed
él/ella/Ud.haya seguido(that) he/she has followedellos/Uds.hayan seguido(that) they have followed

Pasadowhat went on

Pretérito indefinido

Preterite — a finished past action — it started, it ended

yoseguíI followednosotrosseguimoswe followed
túseguisteyou followedvosotrosseguisteisyou all followed
él/ella/Ud.siguióhe/she followedellos/Uds.siguieronthey followed

Pretérito imperfecto

Imperfect — used to / was —ing; background, habits, descriptions

yoseguíaI used to follownosotrosseguíamoswe used to follow
túseguíasyou used to followvosotrosseguíaisyou all used to follow
él/ella/Ud.seguíahe/she used to followellos/Uds.seguíanthey used to follow

Pretérito pluscuamperfecto

Past perfect — had —ed; further back than another past event

yohabía seguidoI had followednosotroshabíamos seguidowe had followed
túhabías seguidoyou had followedvosotroshabíais seguidoyou all had followed
él/ella/Ud.había seguidohe/she had followedellos/Uds.habían seguidothey had followed

Imperfecto de subjuntivo (-ra)

Imperfect subjunctive — si clauses and past-tense wishes: si tuviera, quería que fuera

yosiguiera(that) I followednosotrossiguiéramos(that) we followed
túsiguieras(that) you followedvosotrossiguierais(that) you all followed
él/ella/Ud.siguiera(that) he/she followedellos/Uds.siguieran(that) they followed

Imperfecto de subjuntivo (-se)

Imperfect subjunctive — the same tense, second form; commoner in Spain and in writing

yosiguiese(that) I followednosotrossiguiésemos(that) we followed
túsiguieses(that) you followedvosotrossiguieseis(that) you all followed
él/ella/Ud.siguiese(that) he/she followedellos/Uds.siguiesen(that) they followed

Pluscuamperfecto de subjuntivo

Past perfect subjunctive — had —ed, hypothetically: si hubiera sabido

yohubiera seguido(that) I had followednosotroshubiéramos seguido(that) we had followed
túhubieras seguido(that) you had followedvosotroshubierais seguido(that) you all had followed
él/ella/Ud.hubiera seguido(that) he/she had followedellos/Uds.hubieran seguido(that) they had followed

Pretérito anterior

Preterite perfect — had —ed, immediately before; literary, all but extinct

yohube seguidoI had followednosotroshubimos seguidowe had followed
túhubiste seguidoyou had followedvosotroshubisteis seguidoyou all had followed
él/ella/Ud.hubo seguidohe/she had followedellos/Uds.hubieron seguidothey had followed

Futurowhat will or would go on

Futuro simple

Future — will — (spoken Spanish often prefers voy a + infinitivo)

yoseguiréI will follownosotrosseguiremoswe will follow
túseguirásyou will followvosotrosseguiréisyou all will follow
él/ella/Ud.seguiráhe/she will followellos/Uds.seguiránthey will follow

Condicional simple

Conditional — would —; also softens a request into politeness

yoseguiríaI would follownosotrosseguiríamoswe would follow
túseguiríasyou would followvosotrosseguiríaisyou all would follow
él/ella/Ud.seguiríahe/she would followellos/Uds.seguiríanthey would follow

Futuro perfecto

Future perfect — will have —ed; done by some future point

yohabré seguidoI will have followednosotroshabremos seguidowe will have followed
túhabrás seguidoyou will have followedvosotroshabréis seguidoyou all will have followed
él/ella/Ud.habrá seguidohe/she will have followedellos/Uds.habrán seguidothey will have followed

Condicional perfecto

Conditional perfect — would have —ed; the road not taken

yohabría seguidoI would have followednosotroshabríamos seguidowe would have followed
túhabrías seguidoyou would have followedvosotroshabríais seguidoyou all would have followed
él/ella/Ud.habría seguidohe/she would have followedellos/Uds.habrían seguidothey would have followed

Futuro de subjuntivo

Future subjunctive — legal and proverbial only: adonde fueres, haz lo que vieres

yosiguiere(should) I follownosotrossiguiéremos(should) we follow
túsiguieres(should) you followvosotrossiguiereis(should) you all follow
él/ella/Ud.siguiere(should) he/she followellos/Uds.siguieren(should) they follow

Imperativotelling someone to

Imperativo afirmativo

Imperative (do it) — orders and requests; there is no yo form

yo—nosotrossigamoslet's follow
túsiguefollow!vosotrosseguidfollow!
él/ella/Ud.sigafollow!ellos/Uds.siganfollow!

Imperativo negativo

Imperative (don't) — no + subjunctive — never the affirmative form with no in front

yo—nosotrosno sigamoslet's not follow
túno sigasdon't followvosotrosno sigáisdon't follow
él/ella/Ud.no sigadon't followellos/Uds.no sigandon't follow
Imagen. Sendero Backbone — traducido de Backbone Trail (Santa Monica Mountains National Recreation Area · flickr · PDM)

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

seguir

to follow, to keep onpor persona-ir irregular
participio seguidogerundio siguiendohe + participio he seguidoestoy + gerundio estoy siguiendo

yo

I — the speaker

PresentesigoI follow
Perfectohe seguidoI have followed
Subj. presentesiga(that) I follow
Subj. perfectohaya seguido(that) I have followed
FuturoseguiréI will follow
CondicionalseguiríaI would follow
Fut. perfectohabré seguidoI will have followed
Cond. perfectohabría seguidoI would have followed
Subj. futurosiguiere(should) I follow
IndefinidoseguíI followed
ImperfectoseguíaI used to follow
Pluscuamp.había seguidoI had followed
Subj. imperf.siguiera(that) I followed
Subj. -sesiguiese(that) I followed
Subj. pluscuamp.hubiera seguido(that) I had followed
Pret. anteriorhube seguidoI had followed
Imperativo—
Imper. negativo—

nosotros / nosotras

we — the speaker plus others

Presenteseguimoswe follow
Perfectohemos seguidowe have followed
Subj. presentesigamos(that) we follow
Subj. perfectohayamos seguido(that) we have followed
Futuroseguiremoswe will follow
Condicionalseguiríamoswe would follow
Fut. perfectohabremos seguidowe will have followed
Cond. perfectohabríamos seguidowe would have followed
Subj. futurosiguiéremos(should) we follow
Indefinidoseguimoswe followed
Imperfectoseguíamoswe used to follow
Pluscuamp.habíamos seguidowe had followed
Subj. imperf.siguiéramos(that) we followed
Subj. -sesiguiésemos(that) we followed
Subj. pluscuamp.hubiéramos seguido(that) we had followed
Pret. anteriorhubimos seguidowe had followed
Imperativosigamoslet's follow
Imper. negativono sigamoslet's not follow

tú

you (informal) — one person you are familiar with

Presentesiguesyou follow
Perfectohas seguidoyou have followed
Subj. presentesigas(that) you follow
Subj. perfectohayas seguido(that) you have followed
Futuroseguirásyou will follow
Condicionalseguiríasyou would follow
Fut. perfectohabrás seguidoyou will have followed
Cond. perfectohabrías seguidoyou would have followed
Subj. futurosiguieres(should) you follow
Indefinidoseguisteyou followed
Imperfectoseguíasyou used to follow
Pluscuamp.habías seguidoyou had followed
Subj. imperf.siguieras(that) you followed
Subj. -sesiguieses(that) you followed
Subj. pluscuamp.hubieras seguido(that) you had followed
Pret. anteriorhubiste seguidoyou had followed
Imperativosiguefollow!
Imper. negativono sigasdon't follow

vosotros / vosotras

you all — informal plural, Spain only

Presenteseguísyou all follow
Perfectohabéis seguidoyou all have followed
Subj. presentesigáis(that) you all follow
Subj. perfectohayáis seguido(that) you all have followed
Futuroseguiréisyou all will follow
Condicionalseguiríaisyou all would follow
Fut. perfectohabréis seguidoyou all will have followed
Cond. perfectohabríais seguidoyou all would have followed
Subj. futurosiguiereis(should) you all follow
Indefinidoseguisteisyou all followed
Imperfectoseguíaisyou all used to follow
Pluscuamp.habíais seguidoyou all had followed
Subj. imperf.siguierais(that) you all followed
Subj. -sesiguieseis(that) you all followed
Subj. pluscuamp.hubierais seguido(that) you all had followed
Pret. anteriorhubisteis seguidoyou all had followed
Imperativoseguidfollow!
Imper. negativono sigáisdon't follow

él / ella / usted

he, she, you (formal) — one other person — formal you shares it

Presentesiguehe/she follows
Perfectoha seguidohe/she has followed
Subj. presentesiga(that) he/she follows
Subj. perfectohaya seguido(that) he/she has followed
Futuroseguiráhe/she will follow
Condicionalseguiríahe/she would follow
Fut. perfectohabrá seguidohe/she will have followed
Cond. perfectohabría seguidohe/she would have followed
Subj. futurosiguiere(should) he/she follow
Indefinidosiguióhe/she followed
Imperfectoseguíahe/she used to follow
Pluscuamp.había seguidohe/she had followed
Subj. imperf.siguiera(that) he/she followed
Subj. -sesiguiese(that) he/she followed
Subj. pluscuamp.hubiera seguido(that) he/she had followed
Pret. anteriorhubo seguidohe/she had followed
Imperativosigafollow!
Imper. negativono sigadon't follow

ellos / ellas / ustedes

they, you all — several others — plural you shares it

Presentesiguenthey follow
Perfectohan seguidothey have followed
Subj. presentesigan(that) they follow
Subj. perfectohayan seguido(that) they have followed
Futuroseguiránthey will follow
Condicionalseguiríanthey would follow
Fut. perfectohabrán seguidothey will have followed
Cond. perfectohabrían seguidothey would have followed
Subj. futurosiguieren(should) they follow
Indefinidosiguieronthey followed
Imperfectoseguíanthey used to follow
Pluscuamp.habían seguidothey had followed
Subj. imperf.siguieran(that) they followed
Subj. -sesiguiesen(that) they followed
Subj. pluscuamp.hubieran seguido(that) they had followed
Pret. anteriorhubieron seguidothey had followed
Imperativosiganfollow!
Imper. negativono sigandon't follow
Imagen. Sendero Backbone — traducido de Backbone Trail (Santa Monica Mountains National Recreation Area · flickr · PDM)

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