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deteriorar

to deteriorate

Complete conjugation tables and interactive practice exercises. This is a regular -ar verb.

The Spanish verb deteriorar means to deteriorate.

Present tense:

yodeterioro
deterioras
él/ella/usteddeteriora
nosotrosdeterioramos
vosotrosdeterioráis
ellos/ellas/ustedesdeterioran

Complete Conjugation Tables

Reference all tenses and moods

🔄 Conjugations

subjunctive

imperfect

ellos/ellas/ustedesdeterioraran
yodeteriorara
deterioraras
vosotrosdeteriorarais
nosotrosdeterioráramos
él/ella/usteddeteriorara

Use imperfect subjunctive forms like 'deteriorara' or 'deteriorase' for past hypotheticals, wishes, or polite requests.

Forms, examples & usage →

present

ellos/ellas/ustedesdeterioren
yodeteriore
deteriores
vosotrosdeterioréis
nosotrosdeterioremos
él/ella/usteddeteriore

Use present subjunctive forms like 'deteriore' or 'deterioren' after expressions of doubt, desire, emotion, or uncertainty.

Forms, examples & usage →

imperative

negative

no deteriores
vosotrosno deterioréis
ustedesno deterioren
nosotrosno deterioremos
ustedno deteriore

Form negative commands by adding 'no' before the present subjunctive forms like 'no deteriore' or 'no deterioren'.

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affirmative

deteriora
vosotrosdeteriorad
ustedesdeterioren
nosotrosdeterioremos
usteddeteriore

Use the imperative 'deteriora' for tú commands, and other forms like 'deterioren' for ustedes/ellos commands.

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indicative

conditional

ellos/ellas/ustedesdeteriorarían
yodeterioraría
deteriorarías
vosotrosdeterioraríais
nosotrosdeterioraríamos
él/ella/usteddeterioraría

The conditional of deteriorar is regular: 'deterioraría, deteriorarías, deterioraría, deterioraríamos, deterioraríais, deteriorarían'.

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preterite

ellos/ellas/ustedesdeterioraron
yodeterioré
deterioraste
vosotrosdeteriorasteis
nosotrosdeterioramos
él/ella/usteddeterioró

The preterite of deteriorar is regular: 'deterioré, deterioraste, deterioró, deterioramos, deteriorasteis, deterioraron'.

Forms, examples & usage →

imperfect

ellos/ellas/ustedesdeterioraban
yodeterioraba
deteriorabas
vosotrosdeteriorabais
nosotrosdeteriorábamos
él/ella/usteddeterioraba

The imperfect of deteriorar is regular: 'deterioraba, deteriorabas, deterioraba, deteriorábamos, deteriorabais, deterioraban'.

Forms, examples & usage →

present

ellos/ellas/ustedesdeterioran
yodeterioro
deterioras
vosotrosdeterioráis
nosotrosdeterioramos
él/ella/usteddeteriora

The present tense of deteriorar is regular: 'deterioro, deterioras, deteriora, deterioramos, deterioráis, deterioran'.

Forms, examples & usage →

future

ellos/ellas/ustedesdeteriorarán
yodeterioraré
deteriorarás
vosotrosdeterioraréis
nosotrosdeterioraremos
él/ella/usteddeteriorará

The future tense of deteriorar is regular: 'deterioraré, deteriorarás, deteriorará, deterioraremos, deterioraréis, deteriorarán'.

Forms, examples & usage →

Practice Conjugations

Test your knowledge with interactive exercises

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Take deteriorar from tables to real Spanish

Conjugation tables are the start. Read 200+ illustrated and narrated Spanish stories to see 'deteriorar' in action across real sentences — and build the instinct that native speakers have.