suponer

to supposepor tiempo-er irregular
participio supuestogerundio suponiendohe + participio he supuestoestoy + gerundio estoy suponiendo

Presentewhat is going on now

Presente

Present — what is happening now, and what happens habitually

yosupongoI supposenosotrossuponemoswe suppose
túsuponesyou supposevosotrossuponéisyou all suppose
él/ella/Ud.suponehe/she supposesellos/Uds.suponenthey suppose

Pretérito perfecto

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

yohe supuestoI have supposednosotroshemos supuestowe have supposed
túhas supuestoyou have supposedvosotroshabéis supuestoyou all have supposed
él/ella/Ud.ha supuestohe/she has supposedellos/Uds.han supuestothey have supposed

Presente de subjuntivo

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

yosuponga(that) I supposenosotrossupongamos(that) we suppose
túsupongas(that) you supposevosotrossupongáis(that) you all suppose
él/ella/Ud.suponga(that) he/she supposesellos/Uds.supongan(that) they suppose

Perfecto de subjuntivo

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

yohaya supuesto(that) I have supposednosotroshayamos supuesto(that) we have supposed
túhayas supuesto(that) you have supposedvosotroshayáis supuesto(that) you all have supposed
él/ella/Ud.haya supuesto(that) he/she has supposedellos/Uds.hayan supuesto(that) they have supposed

Pasadowhat went on

Pretérito indefinido

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

yosupuseI supposednosotrossupusimoswe supposed
túsupusisteyou supposedvosotrossupusisteisyou all supposed
él/ella/Ud.supusohe/she supposedellos/Uds.supusieronthey supposed

Pretérito imperfecto

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

yosuponíaI used to supposenosotrossuponíamoswe used to suppose
túsuponíasyou used to supposevosotrossuponíaisyou all used to suppose
él/ella/Ud.suponíahe/she used to supposeellos/Uds.suponíanthey used to suppose

Pretérito pluscuamperfecto

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

yohabía supuestoI had supposednosotroshabíamos supuestowe had supposed
túhabías supuestoyou had supposedvosotroshabíais supuestoyou all had supposed
él/ella/Ud.había supuestohe/she had supposedellos/Uds.habían supuestothey had supposed

Imperfecto de subjuntivo (-ra)

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

yosupusiera(that) I supposednosotrossupusiéramos(that) we supposed
túsupusieras(that) you supposedvosotrossupusierais(that) you all supposed
él/ella/Ud.supusiera(that) he/she supposedellos/Uds.supusieran(that) they supposed

Imperfecto de subjuntivo (-se)

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

yosupusiese(that) I supposednosotrossupusiésemos(that) we supposed
túsupusieses(that) you supposedvosotrossupusieseis(that) you all supposed
él/ella/Ud.supusiese(that) he/she supposedellos/Uds.supusiesen(that) they supposed

Pluscuamperfecto de subjuntivo

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

yohubiera supuesto(that) I had supposednosotroshubiéramos supuesto(that) we had supposed
túhubieras supuesto(that) you had supposedvosotroshubierais supuesto(that) you all had supposed
él/ella/Ud.hubiera supuesto(that) he/she had supposedellos/Uds.hubieran supuesto(that) they had supposed

Pretérito anterior

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

yohube supuestoI had supposednosotroshubimos supuestowe had supposed
túhubiste supuestoyou had supposedvosotroshubisteis supuestoyou all had supposed
él/ella/Ud.hubo supuestohe/she had supposedellos/Uds.hubieron supuestothey had supposed

Futurowhat will or would go on

Futuro simple

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

yosupondréI will supposenosotrossupondremoswe will suppose
túsupondrásyou will supposevosotrossupondréisyou all will suppose
él/ella/Ud.supondráhe/she will supposeellos/Uds.supondránthey will suppose

Condicional simple

Conditional — would —; also softens a request into politeness

yosupondríaI would supposenosotrossupondríamoswe would suppose
túsupondríasyou would supposevosotrossupondríaisyou all would suppose
él/ella/Ud.supondríahe/she would supposeellos/Uds.supondríanthey would suppose

Futuro perfecto

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

yohabré supuestoI will have supposednosotroshabremos supuestowe will have supposed
túhabrás supuestoyou will have supposedvosotroshabréis supuestoyou all will have supposed
él/ella/Ud.habrá supuestohe/she will have supposedellos/Uds.habrán supuestothey will have supposed

Condicional perfecto

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

yohabría supuestoI would have supposednosotroshabríamos supuestowe would have supposed
túhabrías supuestoyou would have supposedvosotroshabríais supuestoyou all would have supposed
él/ella/Ud.habría supuestohe/she would have supposedellos/Uds.habrían supuestothey would have supposed

Futuro de subjuntivo

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

yosupusiere(should) I supposenosotrossupusiéremos(should) we suppose
túsupusieres(should) you supposevosotrossupusiereis(should) you all suppose
él/ella/Ud.supusiere(should) he/she supposeellos/Uds.supusieren(should) they suppose

Imperativotelling someone to

Imperativo afirmativo

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

yo—nosotrossupongamoslet's suppose
túsupónsuppose!vosotrossuponedsuppose!
él/ella/Ud.supongasuppose!ellos/Uds.supongansuppose!

Imperativo negativo

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

yo—nosotrosno supongamoslet's not suppose
túno supongasdon't supposevosotrosno supongáisdon't suppose
él/ella/Ud.no supongadon't supposeellos/Uds.no supongandon't suppose
Imagen. Tablero de ajedrez — traducido de Chess Board (Kristin Hardwick · stocksnap · CC0)

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

suponer

to supposepor persona-er irregular
participio supuestogerundio suponiendohe + participio he supuestoestoy + gerundio estoy suponiendo

yo

I — the speaker

PresentesupongoI suppose
Perfectohe supuestoI have supposed
Subj. presentesuponga(that) I suppose
Subj. perfectohaya supuesto(that) I have supposed
FuturosupondréI will suppose
CondicionalsupondríaI would suppose
Fut. perfectohabré supuestoI will have supposed
Cond. perfectohabría supuestoI would have supposed
Subj. futurosupusiere(should) I suppose
IndefinidosupuseI supposed
ImperfectosuponíaI used to suppose
Pluscuamp.había supuestoI had supposed
Subj. imperf.supusiera(that) I supposed
Subj. -sesupusiese(that) I supposed
Subj. pluscuamp.hubiera supuesto(that) I had supposed
Pret. anteriorhube supuestoI had supposed
Imperativo—
Imper. negativo—

nosotros / nosotras

we — the speaker plus others

Presentesuponemoswe suppose
Perfectohemos supuestowe have supposed
Subj. presentesupongamos(that) we suppose
Subj. perfectohayamos supuesto(that) we have supposed
Futurosupondremoswe will suppose
Condicionalsupondríamoswe would suppose
Fut. perfectohabremos supuestowe will have supposed
Cond. perfectohabríamos supuestowe would have supposed
Subj. futurosupusiéremos(should) we suppose
Indefinidosupusimoswe supposed
Imperfectosuponíamoswe used to suppose
Pluscuamp.habíamos supuestowe had supposed
Subj. imperf.supusiéramos(that) we supposed
Subj. -sesupusiésemos(that) we supposed
Subj. pluscuamp.hubiéramos supuesto(that) we had supposed
Pret. anteriorhubimos supuestowe had supposed
Imperativosupongamoslet's suppose
Imper. negativono supongamoslet's not suppose

tú

you (informal) — one person you are familiar with

Presentesuponesyou suppose
Perfectohas supuestoyou have supposed
Subj. presentesupongas(that) you suppose
Subj. perfectohayas supuesto(that) you have supposed
Futurosupondrásyou will suppose
Condicionalsupondríasyou would suppose
Fut. perfectohabrás supuestoyou will have supposed
Cond. perfectohabrías supuestoyou would have supposed
Subj. futurosupusieres(should) you suppose
Indefinidosupusisteyou supposed
Imperfectosuponíasyou used to suppose
Pluscuamp.habías supuestoyou had supposed
Subj. imperf.supusieras(that) you supposed
Subj. -sesupusieses(that) you supposed
Subj. pluscuamp.hubieras supuesto(that) you had supposed
Pret. anteriorhubiste supuestoyou had supposed
Imperativosupónsuppose!
Imper. negativono supongasdon't suppose

vosotros / vosotras

you all — informal plural, Spain only

Presentesuponéisyou all suppose
Perfectohabéis supuestoyou all have supposed
Subj. presentesupongáis(that) you all suppose
Subj. perfectohayáis supuesto(that) you all have supposed
Futurosupondréisyou all will suppose
Condicionalsupondríaisyou all would suppose
Fut. perfectohabréis supuestoyou all will have supposed
Cond. perfectohabríais supuestoyou all would have supposed
Subj. futurosupusiereis(should) you all suppose
Indefinidosupusisteisyou all supposed
Imperfectosuponíaisyou all used to suppose
Pluscuamp.habíais supuestoyou all had supposed
Subj. imperf.supusierais(that) you all supposed
Subj. -sesupusieseis(that) you all supposed
Subj. pluscuamp.hubierais supuesto(that) you all had supposed
Pret. anteriorhubisteis supuestoyou all had supposed
Imperativosuponedsuppose!
Imper. negativono supongáisdon't suppose

él / ella / usted

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

Presentesuponehe/she supposes
Perfectoha supuestohe/she has supposed
Subj. presentesuponga(that) he/she supposes
Subj. perfectohaya supuesto(that) he/she has supposed
Futurosupondráhe/she will suppose
Condicionalsupondríahe/she would suppose
Fut. perfectohabrá supuestohe/she will have supposed
Cond. perfectohabría supuestohe/she would have supposed
Subj. futurosupusiere(should) he/she suppose
Indefinidosupusohe/she supposed
Imperfectosuponíahe/she used to suppose
Pluscuamp.había supuestohe/she had supposed
Subj. imperf.supusiera(that) he/she supposed
Subj. -sesupusiese(that) he/she supposed
Subj. pluscuamp.hubiera supuesto(that) he/she had supposed
Pret. anteriorhubo supuestohe/she had supposed
Imperativosupongasuppose!
Imper. negativono supongadon't suppose

ellos / ellas / ustedes

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

Presentesuponenthey suppose
Perfectohan supuestothey have supposed
Subj. presentesupongan(that) they suppose
Subj. perfectohayan supuesto(that) they have supposed
Futurosupondránthey will suppose
Condicionalsupondríanthey would suppose
Fut. perfectohabrán supuestothey will have supposed
Cond. perfectohabrían supuestothey would have supposed
Subj. futurosupusieren(should) they suppose
Indefinidosupusieronthey supposed
Imperfectosuponíanthey used to suppose
Pluscuamp.habían supuestothey had supposed
Subj. imperf.supusieran(that) they supposed
Subj. -sesupusiesen(that) they supposed
Subj. pluscuamp.hubieran supuesto(that) they had supposed
Pret. anteriorhubieron supuestothey had supposed
Imperativosupongansuppose!
Imper. negativono supongandon't suppose
Imagen. Tablero de ajedrez — traducido de Chess Board (Kristin Hardwick · stocksnap · CC0)

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