Disminuir Conjugation | How to Conjugate Disminuir in Spanish

Disminuir means “to decrease,” “to reduce,” or “to diminish.” You will learn its y-pattern forms, regular future/conditional, subjunctive families, gerund, participle, and commands.

Disminuir conjugation at a glance

Verb type: Irregular. Disminuir inserts y in the affected present-family forms, third-person preterite forms, subjunctive families, and the gerund: disminuyo, disminuyó / disminuyeron, disminuya, and disminuyendo.

Disminuir gerund, past participle, and infinitive

The infinitive names the verb, the gerund supports progressive constructions, and the past participle combines with haber in compound forms. The participle disminuido remains invariant in those compounds.

Form	Spanish	Natural English guide
Infinitive	disminuir	to decrease / reduce
Gerund	disminuyendo	decreasing / reducing
Past participle	disminuido	decreased / reduced

Disminuir meaning and essential uses

RAE defines disminuir as making the extent, intensity, or number of something smaller. It can be transitive: Disminuyo el volumen. — “I reduce the volume.”

RAE also records intransitive and pronominal uses: La temperatura disminuye. — “The temperature decreases.” The conjugation is the same; only the sentence structure changes.

Disminuir irregular conjugation patterns

Present indicative uses y except in nosotros/nosotras and vosotros/vosotras: disminuyo, disminuyes, disminuye, disminuimos, disminuís, disminuyen.

Preterite third-person forms are disminuyó / disminuyeron. Present subjunctive uses disminuy- throughout; past/future subjunctive use disminuyer-. The gerund is disminuyendo.

Disminuir indicative and periphrastic conjugations

Disminuir present tense conjugation

Present indicative (el presente de indicativo) — Use it for current situations, habits, facts, and contextually near-future reference. Forms outside nosotros/nosotras and vosotros/vosotras insert y: disminuyo, disminuyes, disminuye, disminuyen.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuyo	I decrease / reduce
Tú — you, singular informal	disminuyes	you decrease / reduce
Él / Ella / Usted — he / she / you, singular formal	disminuye	he / she decreases / reduces; you decrease / reduce (formal)
Nosotros / Nosotras — we	disminuimos	we decrease / reduce
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuís	you decrease / reduce (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuyen	they decrease / reduce; you decrease / reduce (plural)

• Disminuyo el volumen por la noche. — I reduce the volume at night.

Disminuir preterite conjugation

Preterite (el pretérito perfecto simple / pretérito indefinido) — Use it for completed or bounded past events. Third-person forms are disminuyó / disminuyeron; the remaining preterite forms keep the expected i spellings.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuí	I decreased / reduced
Tú — you, singular informal	disminuiste	you decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	disminuyó	he / she decreased / reduced; you decreased / reduced (formal)
Nosotros / Nosotras — we	disminuimos	we decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuisteis	you decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuyeron	they decreased / reduced; you decreased / reduced (plural)

• Ayer disminuí el brillo de la pantalla. — Yesterday I reduced the screen brightness.

Disminuir imperfect conjugation

Imperfect (el pretérito imperfecto) — Use it for habitual, descriptive, background, or ongoing past situations. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuía	I used to decrease / reduce / was decreasing / reducing
Tú — you, singular informal	disminuías	you used to decrease / reduce / were decreasing / reducing
Él / Ella / Usted — he / she / you, singular formal	disminuía	he / she used to decrease / reduce / was decreasing / reducing; you used to decrease / reduce / were decreasing / reducing (formal)
Nosotros / Nosotras — we	disminuíamos	we used to decrease / reduce / were decreasing / reducing
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuíais	you used to decrease / reduce / were decreasing / reducing (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuían	they used to decrease / reduce / were decreasing / reducing; you used to decrease / reduce / were decreasing / reducing (plural)

• Antes disminuíamos la velocidad en esa curva. — We used to reduce speed on that bend.

Disminuir present progressive

Present progressive — This verbal periphrasis focuses on an action or process in progress. The gerund is disminuyendo.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	estoy disminuyendo	I am decreasing / reducing
Tú — you, singular informal	estás disminuyendo	you are decreasing / reducing
Él / Ella / Usted — he / she / you, singular formal	está disminuyendo	he / she is decreasing / reducing; you are decreasing / reducing (formal)
Nosotros / Nosotras — we	estamos disminuyendo	we are decreasing / reducing
Vosotros / Vosotras — you, plural informal, mainly Spain	estáis disminuyendo	you are decreasing / reducing (plural)
Ellos / Ellas / Ustedes — they / you, plural	están disminuyendo	they are decreasing / reducing; you are decreasing / reducing (plural)

• La temperatura está disminuyendo. — The temperature is decreasing.

Disminuir near future conjugation

Near future — This verbal periphrasis expresses an intention, plan, or expected event. Form it with present ir + a + disminuir.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	voy a disminuir	I am going to decrease / reduce
Tú — you, singular informal	vas a disminuir	you are going to decrease / reduce
Él / Ella / Usted — he / she / you, singular formal	va a disminuir	he / she is going to decrease / reduce; you are going to decrease / reduce (formal)
Nosotros / Nosotras — we	vamos a disminuir	we are going to decrease / reduce
Vosotros / Vosotras — you, plural informal, mainly Spain	vais a disminuir	you are going to decrease / reduce (plural)
Ellos / Ellas / Ustedes — they / you, plural	van a disminuir	they are going to decrease / reduce; you are going to decrease / reduce (plural)

• Voy a disminuir el tamaño de la imagen. — I am going to reduce the image size.

Disminuir future tense conjugation

Simple future (el futuro simple) — Use it for future reference and, where useful, probability. The table uses the verified paradigm.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuiré	I will decrease / reduce
Tú — you, singular informal	disminuirás	you will decrease / reduce
Él / Ella / Usted — he / she / you, singular formal	disminuirá	he / she will decrease / reduce; you will decrease / reduce (formal)
Nosotros / Nosotras — we	disminuiremos	we will decrease / reduce
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuiréis	you will decrease / reduce (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuirán	they will decrease / reduce; you will decrease / reduce (plural)

• Disminuiremos los costes el próximo año. — We will reduce costs next year.

Disminuir conditional conjugation

Conditional (el condicional simple) — Use it for hypothetical outcomes, softened statements, or related conditional meanings. The table uses the verified paradigm.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuiría	I would decrease / reduce
Tú — you, singular informal	disminuirías	you would decrease / reduce
Él / Ella / Usted — he / she / you, singular formal	disminuiría	he / she would decrease / reduce; you would decrease / reduce (formal)
Nosotros / Nosotras — we	disminuiríamos	we would decrease / reduce
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuiríais	you would decrease / reduce (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuirían	they would decrease / reduce; you would decrease / reduce (plural)

• Disminuiría el volumen un poco más. — I would reduce the volume a little more.

Disminuir present perfect conjugation

Present perfect (el pretérito perfecto compuesto) — Use it for completed events connected to a present reference frame; regional distribution varies. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	he disminuido	I have decreased / reduced
Tú — you, singular informal	has disminuido	you have decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	ha disminuido	he / she has decreased / reduced; you have decreased / reduced (formal)
Nosotros / Nosotras — we	hemos disminuido	we have decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	habéis disminuido	you have decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	han disminuido	they have decreased / reduced; you have decreased / reduced (plural)

• He disminuido el consumo de energía. — I have reduced energy consumption.

Disminuir past perfect conjugation

Past perfect (el pretérito pluscuamperfecto) — Use it for an event completed before another past reference point. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	había disminuido	I had decreased / reduced
Tú — you, singular informal	habías disminuido	you had decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	había disminuido	he / she had decreased / reduced; you had decreased / reduced (formal)
Nosotros / Nosotras — we	habíamos disminuido	we had decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	habíais disminuido	you had decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	habían disminuido	they had decreased / reduced; you had decreased / reduced (plural)

• Ya habíamos disminuido la velocidad. — We had already reduced the speed.

Disminuir future perfect conjugation

Future perfect (el futuro perfecto) — Use it for an event expected to be completed before a future reference point. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	habré disminuido	I will have decreased / reduced
Tú — you, singular informal	habrás disminuido	you will have decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	habrá disminuido	he / she will have decreased / reduced; you will have decreased / reduced (formal)
Nosotros / Nosotras — we	habremos disminuido	we will have decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	habréis disminuido	you will have decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	habrán disminuido	they will have decreased / reduced; you will have decreased / reduced (plural)

• Para entonces habrán disminuido las emisiones. — By then they will have reduced emissions.

Disminuir conditional perfect conjugation

Conditional perfect (el condicional compuesto) — Use it for a hypothetical completed outcome. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	habría disminuido	I would have decreased / reduced
Tú — you, singular informal	habrías disminuido	you would have decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	habría disminuido	he / she would have decreased / reduced; you would have decreased / reduced (formal)
Nosotros / Nosotras — we	habríamos disminuido	we would have decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	habríais disminuido	you would have decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	habrían disminuido	they would have decreased / reduced; you would have decreased / reduced (plural)

• Habría disminuido el riesgo con otra medida. — I would have reduced the risk with another measure.

Disminuir subjunctive conjugations

Disminuir present subjunctive conjugation

Present subjunctive (el presente de subjuntivo) — Use it in subordinate environments involving wishes, influence, emotion, doubt or denial, evaluation, necessity, possibility, or non-specific reference. Present subjunctive uses disminuy- throughout.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuya	that I decrease / reduce
Tú — you, singular informal	disminuyas	that you decrease / reduce
Él / Ella / Usted — he / she / you, singular formal	disminuya	that he / she decrease / reduce; that you decrease / reduce (formal)
Nosotros / Nosotras — we	disminuyamos	that we decrease / reduce
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuyáis	that you decrease / reduce (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuyan	that they decrease / reduce; that you decrease / reduce (plural)

• Quiero que disminuyas el volumen. — I want you to reduce the volume.

Disminuir imperfect subjunctive conjugation

Imperfect subjunctive (el imperfecto de subjuntivo) — The main table uses the -ra series. The accepted -se series is also valid in many contexts and is demonstrated after the table. These forms use disminuyer-; the main table shows the -ra series.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuyera	that I decreased / reduced
Tú — you, singular informal	disminuyeras	that you decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	disminuyera	that he / she decreased / reduced; that you decreased / reduced (formal)
Nosotros / Nosotras — we	disminuyéramos	that we decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuyerais	that you decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuyeran	that they decreased / reduced; that you decreased / reduced (plural)

• Preferían que disminuyéramos los costes gradualmente. — They preferred that we reduce costs gradually.
• Era mejor que disminuyeses la velocidad antes. — It was better for you to reduce speed earlier.

Disminuir future subjunctive conjugation

Future subjunctive (el futuro de subjuntivo) — Rare in modern everyday Spanish. It survives mainly in formal, legal, proverbial, literary, or historical contexts. These rare forms use disminuyer-.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	disminuyere	if / when I should decrease / reduce
Tú — you, singular informal	disminuyeres	if / when you should decrease / reduce
Él / Ella / Usted — he / she / you, singular formal	disminuyere	if / when he / she should decrease / reduce; if / when you should decrease / reduce (formal)
Nosotros / Nosotras — we	disminuyéremos	if / when we should decrease / reduce
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuyereis	if / when you should decrease / reduce (plural)
Ellos / Ellas / Ustedes — they / you, plural	disminuyeren	if / when they should decrease / reduce; if / when you should decrease / reduce (plural)

• Quien disminuyere el límite deberá justificarlo. — Whoever should reduce the limit must justify it.

Disminuir present perfect subjunctive conjugation

Present perfect subjunctive (el pretérito perfecto de subjuntivo) — Use it when a completed event appears inside a present- or future-oriented subjunctive environment. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	haya disminuido	that I have decreased / reduced
Tú — you, singular informal	hayas disminuido	that you have decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	haya disminuido	that he / she has decreased / reduced; that you have decreased / reduced (formal)
Nosotros / Nosotras — we	hayamos disminuido	that we have decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	hayáis disminuido	that you have decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	hayan disminuido	that they have decreased / reduced; that you have decreased / reduced (plural)

• Me alegra que hayas disminuido el consumo. — I am glad that you reduced consumption.

Disminuir past perfect subjunctive conjugation

Past perfect subjunctive (el pluscuamperfecto de subjuntivo) — The main table uses hubiera; hubiese is an accepted auxiliary alternative in many contexts and is demonstrated after the table. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	hubiera disminuido	that I had decreased / reduced
Tú — you, singular informal	hubieras disminuido	that you had decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	hubiera disminuido	that he / she had decreased / reduced; that you had decreased / reduced (formal)
Nosotros / Nosotras — we	hubiéramos disminuido	that we had decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	hubierais disminuido	that you had decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	hubieran disminuido	that they had decreased / reduced; that you had decreased / reduced (plural)

• Si hubiera disminuido la velocidad, habría frenado a tiempo. — If I had reduced speed, I would have stopped in time.
• Si hubieses disminuido el volumen, todos habrían estado más cómodos. — If you had reduced the volume, everyone would have been more comfortable.

Disminuir future perfect subjunctive conjugation

Future perfect subjunctive (el futuro perfecto de subjuntivo) — Rare in modern everyday Spanish. Treat it as a formal or historical reference form, not an everyday conversational target. Form it with the appropriate form of haber plus invariant disminuido.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	hubiere disminuido	if / when I should have decreased / reduced
Tú — you, singular informal	hubieres disminuido	if / when you should have decreased / reduced
Él / Ella / Usted — he / she / you, singular formal	hubiere disminuido	if / when he / she should have decreased / reduced; if / when you should have decreased / reduced (formal)
Nosotros / Nosotras — we	hubiéremos disminuido	if / when we should have decreased / reduced
Vosotros / Vosotras — you, plural informal, mainly Spain	hubiereis disminuido	if / when you should have decreased / reduced (plural)
Ellos / Ellas / Ustedes — they / you, plural	hubieren disminuido	if / when they should have decreased / reduced; if / when you should have decreased / reduced (plural)

• Si hubieren disminuido los niveles por debajo del mínimo, deberán comunicarlo. — If the levels should have decreased below the minimum, they must report it.

Disminuir imperative and commands

Commands address another person directly. The nosotros/nosotras row is a present-subjunctive form used with exhortative “let’s…” value.

Disminuir affirmative commands

Use the verified affirmative command forms for direct instructions when the target meaning supports them naturally.

Pronoun and English meaning	Spanish	Natural English guide
Tú — you, singular informal	disminuye	decrease
Usted — you, singular formal	disminuya	decrease (formal)
Nosotros / Nosotras — we; let’s…	disminuyamos	let’s decrease
Vosotros / Vosotras — you, plural informal, mainly Spain	disminuid	decrease (plural, mainly Spain)
Ustedes — you, plural	disminuyan	decrease (plural)

• Disminuye el volumen un poco. — Reduce the volume a little.

Disminuir negative commands

Negative commands use subjunctive-based forms, with no before the verb.

Pronoun and English meaning	Spanish	Natural English guide
Tú — you, singular informal	no disminuyas	do not decrease
Usted — you, singular formal	no disminuya	do not decrease (formal)
Nosotros / Nosotras — we; let’s…	no disminuyamos	let’s not decrease
Vosotros / Vosotras — you, plural informal, mainly Spain	no disminuyáis	do not decrease (plural, mainly Spain)
Ustedes — you, plural	no disminuyan	do not decrease (plural)

• No disminuyas la calidad para ahorrar espacio. — Do not reduce quality to save space.

Common constructions with Disminuir

These patterns show sentence frames that materially affect how the target verb is used.

• disminuir algo. — to reduce / decrease something.
• algo disminuye. — something decreases.
• disminuir en + amount / percentage. — to decrease by an amount or percentage.
• disminuir hasta + level. — to decrease to a level.

Example sentences with Disminuir

These examples reinforce useful forms and contexts already taught in the lesson.

• Los precios disminuyeron este mes. — Prices decreased this month.
• Necesitamos disminuir el consumo. — We need to reduce consumption.
• La intensidad está disminuyendo. — The intensity is decreasing.
• Espero que disminuyas la velocidad. — I hope you reduce speed.
• Han disminuido los errores. — Errors have decreased.
• Disminuye la cantidad poco a poco. — Reduce the amount gradually.

Regional and usage notes for Disminuir

The core tables retain tú, usted, vosotros/vosotras, and ustedes. Voseo changes some second-person singular forms where vos is used.

• Vos disminuís la velocidad aquí. — You reduce speed here. (voseo)
• Disminuí el volumen, por favor. — Reduce the volume, please. (affirmative vos command)

For disminuir, memorize the y families: disminuyo, disminuyó / disminuyeron, disminuya, disminuyera / disminuyere, and disminuyendo. Future and conditional remain regular.