medir

to measurepor tiempo-ir · cambio radical e→i
participio medidogerundio midiendohe + participio he medidoestoy + gerundio estoy midiendo

Presentewhat is going on now

Presente

Present — what is happening now, and what happens habitually

yomidoI measurenosotrosmedimoswe measure
túmidesyou measurevosotrosmedísyou all measure
él/ella/Ud.midehe/she measuresellos/Uds.midenthey measure

Pretérito perfecto

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

yohe medidoI have measurednosotroshemos medidowe have measured
túhas medidoyou have measuredvosotroshabéis medidoyou all have measured
él/ella/Ud.ha medidohe/she has measuredellos/Uds.han medidothey have measured

Presente de subjuntivo

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

yomida(that) I measurenosotrosmidamos(that) we measure
túmidas(that) you measurevosotrosmidáis(that) you all measure
él/ella/Ud.mida(that) he/she measuresellos/Uds.midan(that) they measure

Perfecto de subjuntivo

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

yohaya medido(that) I have measurednosotroshayamos medido(that) we have measured
túhayas medido(that) you have measuredvosotroshayáis medido(that) you all have measured
él/ella/Ud.haya medido(that) he/she has measuredellos/Uds.hayan medido(that) they have measured

Pasadowhat went on

Pretérito indefinido

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

yomedíI measurednosotrosmedimoswe measured
túmedisteyou measuredvosotrosmedisteisyou all measured
él/ella/Ud.midióhe/she measuredellos/Uds.midieronthey measured

Pretérito imperfecto

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

yomedíaI used to measurenosotrosmedíamoswe used to measure
túmedíasyou used to measurevosotrosmedíaisyou all used to measure
él/ella/Ud.medíahe/she used to measureellos/Uds.medíanthey used to measure

Pretérito pluscuamperfecto

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

yohabía medidoI had measurednosotroshabíamos medidowe had measured
túhabías medidoyou had measuredvosotroshabíais medidoyou all had measured
él/ella/Ud.había medidohe/she had measuredellos/Uds.habían medidothey had measured

Imperfecto de subjuntivo (-ra)

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

yomidiera(that) I measurednosotrosmidiéramos(that) we measured
túmidieras(that) you measuredvosotrosmidierais(that) you all measured
él/ella/Ud.midiera(that) he/she measuredellos/Uds.midieran(that) they measured

Imperfecto de subjuntivo (-se)

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

yomidiese(that) I measurednosotrosmidiésemos(that) we measured
túmidieses(that) you measuredvosotrosmidieseis(that) you all measured
él/ella/Ud.midiese(that) he/she measuredellos/Uds.midiesen(that) they measured

Pluscuamperfecto de subjuntivo

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

yohubiera medido(that) I had measurednosotroshubiéramos medido(that) we had measured
túhubieras medido(that) you had measuredvosotroshubierais medido(that) you all had measured
él/ella/Ud.hubiera medido(that) he/she had measuredellos/Uds.hubieran medido(that) they had measured

Pretérito anterior

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

yohube medidoI had measurednosotroshubimos medidowe had measured
túhubiste medidoyou had measuredvosotroshubisteis medidoyou all had measured
él/ella/Ud.hubo medidohe/she had measuredellos/Uds.hubieron medidothey had measured

Futurowhat will or would go on

Futuro simple

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

yomediréI will measurenosotrosmediremoswe will measure
túmedirásyou will measurevosotrosmediréisyou all will measure
él/ella/Ud.mediráhe/she will measureellos/Uds.mediránthey will measure

Condicional simple

Conditional — would —; also softens a request into politeness

yomediríaI would measurenosotrosmediríamoswe would measure
túmediríasyou would measurevosotrosmediríaisyou all would measure
él/ella/Ud.mediríahe/she would measureellos/Uds.mediríanthey would measure

Futuro perfecto

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

yohabré medidoI will have measurednosotroshabremos medidowe will have measured
túhabrás medidoyou will have measuredvosotroshabréis medidoyou all will have measured
él/ella/Ud.habrá medidohe/she will have measuredellos/Uds.habrán medidothey will have measured

Condicional perfecto

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

yohabría medidoI would have measurednosotroshabríamos medidowe would have measured
túhabrías medidoyou would have measuredvosotroshabríais medidoyou all would have measured
él/ella/Ud.habría medidohe/she would have measuredellos/Uds.habrían medidothey would have measured

Futuro de subjuntivo

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

yomidiere(should) I measurenosotrosmidiéremos(should) we measure
túmidieres(should) you measurevosotrosmidiereis(should) you all measure
él/ella/Ud.midiere(should) he/she measureellos/Uds.midieren(should) they measure

Imperativotelling someone to

Imperativo afirmativo

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

yo—nosotrosmidamoslet's measure
túmidemeasure!vosotrosmedidmeasure!
él/ella/Ud.midameasure!ellos/Uds.midanmeasure!

Imperativo negativo

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

yo—nosotrosno midamoslet's not measure
túno midasdon't measurevosotrosno midáisdon't measure
él/ella/Ud.no midadon't measureellos/Uds.no midandon't measure
Imagen. Pelota de tenis y cinta métrica — traducido de Tennis ball and measuring tape (GeorgeTan#5 · flickr · CC0)

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

medir

to measurepor persona-ir · cambio radical e→i
participio medidogerundio midiendohe + participio he medidoestoy + gerundio estoy midiendo

yo

I — the speaker

PresentemidoI measure
Perfectohe medidoI have measured
Subj. presentemida(that) I measure
Subj. perfectohaya medido(that) I have measured
FuturomediréI will measure
CondicionalmediríaI would measure
Fut. perfectohabré medidoI will have measured
Cond. perfectohabría medidoI would have measured
Subj. futuromidiere(should) I measure
IndefinidomedíI measured
ImperfectomedíaI used to measure
Pluscuamp.había medidoI had measured
Subj. imperf.midiera(that) I measured
Subj. -semidiese(that) I measured
Subj. pluscuamp.hubiera medido(that) I had measured
Pret. anteriorhube medidoI had measured
Imperativo—
Imper. negativo—

nosotros / nosotras

we — the speaker plus others

Presentemedimoswe measure
Perfectohemos medidowe have measured
Subj. presentemidamos(that) we measure
Subj. perfectohayamos medido(that) we have measured
Futuromediremoswe will measure
Condicionalmediríamoswe would measure
Fut. perfectohabremos medidowe will have measured
Cond. perfectohabríamos medidowe would have measured
Subj. futuromidiéremos(should) we measure
Indefinidomedimoswe measured
Imperfectomedíamoswe used to measure
Pluscuamp.habíamos medidowe had measured
Subj. imperf.midiéramos(that) we measured
Subj. -semidiésemos(that) we measured
Subj. pluscuamp.hubiéramos medido(that) we had measured
Pret. anteriorhubimos medidowe had measured
Imperativomidamoslet's measure
Imper. negativono midamoslet's not measure

tú

you (informal) — one person you are familiar with

Presentemidesyou measure
Perfectohas medidoyou have measured
Subj. presentemidas(that) you measure
Subj. perfectohayas medido(that) you have measured
Futuromedirásyou will measure
Condicionalmediríasyou would measure
Fut. perfectohabrás medidoyou will have measured
Cond. perfectohabrías medidoyou would have measured
Subj. futuromidieres(should) you measure
Indefinidomedisteyou measured
Imperfectomedíasyou used to measure
Pluscuamp.habías medidoyou had measured
Subj. imperf.midieras(that) you measured
Subj. -semidieses(that) you measured
Subj. pluscuamp.hubieras medido(that) you had measured
Pret. anteriorhubiste medidoyou had measured
Imperativomidemeasure!
Imper. negativono midasdon't measure

vosotros / vosotras

you all — informal plural, Spain only

Presentemedísyou all measure
Perfectohabéis medidoyou all have measured
Subj. presentemidáis(that) you all measure
Subj. perfectohayáis medido(that) you all have measured
Futuromediréisyou all will measure
Condicionalmediríaisyou all would measure
Fut. perfectohabréis medidoyou all will have measured
Cond. perfectohabríais medidoyou all would have measured
Subj. futuromidiereis(should) you all measure
Indefinidomedisteisyou all measured
Imperfectomedíaisyou all used to measure
Pluscuamp.habíais medidoyou all had measured
Subj. imperf.midierais(that) you all measured
Subj. -semidieseis(that) you all measured
Subj. pluscuamp.hubierais medido(that) you all had measured
Pret. anteriorhubisteis medidoyou all had measured
Imperativomedidmeasure!
Imper. negativono midáisdon't measure

él / ella / usted

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

Presentemidehe/she measures
Perfectoha medidohe/she has measured
Subj. presentemida(that) he/she measures
Subj. perfectohaya medido(that) he/she has measured
Futuromediráhe/she will measure
Condicionalmediríahe/she would measure
Fut. perfectohabrá medidohe/she will have measured
Cond. perfectohabría medidohe/she would have measured
Subj. futuromidiere(should) he/she measure
Indefinidomidióhe/she measured
Imperfectomedíahe/she used to measure
Pluscuamp.había medidohe/she had measured
Subj. imperf.midiera(that) he/she measured
Subj. -semidiese(that) he/she measured
Subj. pluscuamp.hubiera medido(that) he/she had measured
Pret. anteriorhubo medidohe/she had measured
Imperativomidameasure!
Imper. negativono midadon't measure

ellos / ellas / ustedes

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

Presentemidenthey measure
Perfectohan medidothey have measured
Subj. presentemidan(that) they measure
Subj. perfectohayan medido(that) they have measured
Futuromediránthey will measure
Condicionalmediríanthey would measure
Fut. perfectohabrán medidothey will have measured
Cond. perfectohabrían medidothey would have measured
Subj. futuromidieren(should) they measure
Indefinidomidieronthey measured
Imperfectomedíanthey used to measure
Pluscuamp.habían medidothey had measured
Subj. imperf.midieran(that) they measured
Subj. -semidiesen(that) they measured
Subj. pluscuamp.hubieran medido(that) they had measured
Pret. anteriorhubieron medidothey had measured
Imperativomidanmeasure!
Imper. negativono midandon't measure
Imagen. Pelota de tenis y cinta métrica — traducido de Tennis ball and measuring tape (GeorgeTan#5 · flickr · CC0)

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