Decidir Conjugation | How to Conjugate Decidir in Spanish

Decidir means “to decide” and is used for reaching a decision, choosing a course of action, or determining an outcome. You will learn its regular -IR forms and its common infinitive and pronominal constructions.

Decidir conjugation at a glance

Verb type: Regular IR. Linguistically, the core non-pronominal paradigm is regular: the stem decid- remains stable, the gerund decidiendo — “deciding” — and participle decidido — “decided” — are regular, and the finite endings follow the expected -IR pattern. Pronominal uses require a clitic but do not create an irregular stem.

Decidir gerund, past participle, and infinitive

The infinitive names the verb, the gerund supports progressive constructions, and the past participle combines with haber — “to have” as an auxiliary — in compound forms. With haber, the participle remains invariant for gender and number.

Form	Spanish	Natural English guide
Infinitive	decidir	to decide
Gerund	decidiendo	deciding
Past participle	decidido	decided

Decidir meaning and essential uses

Use decidir — “to decide” — for reaching a decision or determining an outcome: Decidimos el horario. — “We decide the schedule.”

A very common frame is decidir + infinitive — “to decide to do something.” The verb also has pronominal uses such as decidirse a — “to make up one’s mind to” — and decidirse por — “to choose after reflection”; those uses require the appropriate clitic.

Decidir regular conjugation pattern

Linguistically, the core non-pronominal paradigm is regular: the stem decid- remains stable, the gerund decidiendo — “deciding” — and participle decidido — “decided” — are regular, and the finite endings follow the expected -IR pattern. Pronominal uses require a clitic but do not create an irregular stem.

There is no stem change, spelling alternation, irregular gerund, or irregular participle in the core paradigm. The forms use the stable stem described above plus the expected endings.

Decidir indicative and periphrastic conjugations

Decidir present tense conjugation

Present indicative (el presente de indicativo) — Use it for present actions, habits, facts, and current states. The explanation below follows this verb’s verified present-tense pattern. The stem decid- takes the regular -IR present endings.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decido	I decide
Tú — you, singular informal	decides	you decide
Él / Ella / Usted — he / she / you, singular formal	decide	he / she decides; you decide (formal)
Nosotros / Nosotras — we	decidimos	we decide
Vosotros / Vosotras — you, plural informal, mainly Spain	decidís	you decide (plural)
Ellos / Ellas / Ustedes — they / you, plural	deciden	they decide; you decide (plural)

• Decido después de revisar los datos. — I decide after reviewing the data.

Decidir preterite conjugation

Preterite (el pretérito perfecto simple / pretérito indefinido) — Use it for completed or bounded past events. The table shows this verb’s verified preterite family. The preterite follows the regular -IR pattern, with every person translated in the table.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decidí	I decided
Tú — you, singular informal	decidiste	you decided
Él / Ella / Usted — he / she / you, singular formal	decidió	he / she decided; you decided (formal)
Nosotros / Nosotras — we	decidimos	we decided
Vosotros / Vosotras — you, plural informal, mainly Spain	decidisteis	you decided (plural)
Ellos / Ellas / Ustedes — they / you, plural	decidieron	they decided; you decided (plural)

• Ayer decidieron cambiar el horario. — Yesterday they decided to change the schedule.

Decidir imperfect conjugation

Imperfect (el pretérito imperfecto) — Use it for past habits, background descriptions, and situations viewed as ongoing. The table shows the verified imperfect forms.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decidía	I used to decide / was deciding
Tú — you, singular informal	decidías	you used to decide / were deciding
Él / Ella / Usted — he / she / you, singular formal	decidía	he / she used to decide / was deciding; you used to decide / were deciding (formal)
Nosotros / Nosotras — we	decidíamos	we used to decide / were deciding
Vosotros / Vosotras — you, plural informal, mainly Spain	decidíais	you used to decide / were deciding (plural)
Ellos / Ellas / Ustedes — they / you, plural	decidían	they used to decide / were deciding; you used to decide / were deciding (plural)

• Antes decidíamos todo en grupo. — We used to decide everything as a group.

Decidir present progressive

Present progressive — This verbal periphrasis focuses on an action or process in progress. Form it with a present form of estar — “to be” — plus the verified gerund.

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

• Estoy decidiendo qué opción elegir. — I am deciding which option to choose.

Decidir near future conjugation

Near future — This verbal periphrasis expresses a plan, intention, or expected event. Form it with a present form of ir — “to go” — plus a — “to” — and the infinitive.

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

• Vamos a decidir el plan esta tarde. — We are going to decide the plan this afternoon.

Decidir future tense conjugation

Simple future (el futuro simple) — Use it for future reference and, where context supports it, probability. The table shows the verified future forms. Future endings attach to the full infinitive.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decidiré	I will decide
Tú — you, singular informal	decidirás	you will decide
Él / Ella / Usted — he / she / you, singular formal	decidirá	he / she will decide; you will decide (formal)
Nosotros / Nosotras — we	decidiremos	we will decide
Vosotros / Vosotras — you, plural informal, mainly Spain	decidiréis	you will decide (plural)
Ellos / Ellas / Ustedes — they / you, plural	decidirán	they will decide; you will decide (plural)

• Decidiré mañana por la mañana. — I will decide tomorrow morning.

Decidir conditional conjugation

Conditional (el condicional simple) — Use it for hypothetical outcomes, softened statements, or other conditional meanings supported by context. Conditional endings attach to the full infinitive.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decidiría	I would decide
Tú — you, singular informal	decidirías	you would decide
Él / Ella / Usted — he / she / you, singular formal	decidiría	he / she would decide; you would decide (formal)
Nosotros / Nosotras — we	decidiríamos	we would decide
Vosotros / Vosotras — you, plural informal, mainly Spain	decidiríais	you would decide (plural)
Ellos / Ellas / Ustedes — they / you, plural	decidirían	they would decide; you would decide (plural)

• Decidiría después de hablar con el equipo. — I would decide after speaking with the team.

Decidir present perfect conjugation

Present perfect (el pretérito perfecto compuesto) — Form it with present haber — “to have” as an auxiliary — plus the past participle. Distribution of the present perfect varies across Spanish-speaking regions. The participle is decidido — “decided.”

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

• Hemos decidido continuar. — We have decided to continue.

Decidir past perfect conjugation

Past perfect (el pretérito pluscuamperfecto) — Use it for an event completed before another past reference point. Form it with imperfect haber plus the invariant past participle. The participle is decidido — “decided.”

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

• Ya habían decidido la fecha. — They had already decided the date.

Decidir 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 future haber plus the invariant past participle. The participle is decidido — “decided.”

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

• Para el viernes habremos decidido el presupuesto. — By Friday we will have decided the budget.

Decidir conditional perfect conjugation

Conditional perfect (el condicional compuesto) — Use it for a hypothetical completed outcome. Form it with conditional haber plus the invariant past participle. The participle is decidido — “decided.”

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

• Habría decidido lo mismo con esos datos. — I would have decided the same thing with that information.

Decidir subjunctive conjugations

Decidir present subjunctive conjugation

Present subjunctive (el presente de subjuntivo) — Use it in subordinate contexts involving wishes, influence, emotion, doubt or denial, evaluation, necessity, possibility, or non-specific reference. The table shows this verb’s verified present-subjunctive family. The present subjunctive uses decid- plus the regular -IR subjunctive endings.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decida	that I decide
Tú — you, singular informal	decidas	that you decide
Él / Ella / Usted — he / she / you, singular formal	decida	that he / she decide; that you decide (formal)
Nosotros / Nosotras — we	decidamos	that we decide
Vosotros / Vosotras — you, plural informal, mainly Spain	decidáis	that you decide (plural)
Ellos / Ellas / Ustedes — they / you, plural	decidan	that they decide; that you decide (plural)

• Necesito que decidas hoy. — I need you to decide today.

Decidir 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; the two series should not be treated as mechanically interchangeable in every special construction.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decidiera	that I decided
Tú — you, singular informal	decidieras	that you decided
Él / Ella / Usted — he / she / you, singular formal	decidiera	that he / she decided; that you decided (formal)
Nosotros / Nosotras — we	decidiéramos	that we decided
Vosotros / Vosotras — you, plural informal, mainly Spain	decidierais	that you decided (plural)
Ellos / Ellas / Ustedes — they / you, plural	decidieran	that they decided; that you decided (plural)

• Querían que decidiéramos juntos. — They wanted us to decide together.
• Prefería que decidieses después de pensarlo. — She preferred that you decide after thinking it over.

Decidir 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 and is included here as a reference system.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	decidiere	if / when I should decide
Tú — you, singular informal	decidieres	if / when you should decide
Él / Ella / Usted — he / she / you, singular formal	decidiere	if / when he / she should decide; if / when you should decide (formal)
Nosotros / Nosotras — we	decidiéremos	if / when we should decide
Vosotros / Vosotras — you, plural informal, mainly Spain	decidiereis	if / when you should decide (plural)
Ellos / Ellas / Ustedes — they / you, plural	decidieren	if / when they should decide; if / when you should decide (plural)

• Si el tribunal decidiere otra cosa, se aplicará la resolución. — If the court should decide otherwise, the ruling will be applied.

Decidir 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 present-subjunctive haber plus the invariant past participle.

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

• Me alegra que hayas decidido venir. — I am glad that you have decided to come.

Decidir 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. The past participle remains invariant.

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

• Si hubiéramos decidido antes, habríamos ahorrado tiempo. — If we had decided earlier, we would have saved time.
• Si hubieses decidido quedarte, te habríamos esperado. — If you had decided to stay, we would have waited for you.

Decidir future perfect subjunctive conjugation

Future perfect subjunctive (el futuro perfecto de subjuntivo) — Rare in modern everyday Spanish. It is a reference form used mainly in formal, legal, literary, or historical contexts. Form it with future-subjunctive haber plus the invariant past participle.

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

• Si hubieren decidido por unanimidad, constará en el acta. — If they should have decided unanimously, it will be recorded in the minutes.

Decidir imperative and commands

Commands address another person directly. Spanish uses different morphological sources depending on person and polarity; the nosotros/nosotras row is a present-subjunctive form used with exhortative “let’s…” value.

Decidir affirmative commands

Use affirmative commands for direct instructions when the target verb supports that function naturally. The table includes the five core addressee or exhortative rows.

Pronoun and English meaning	Spanish	Natural English guide
Tú — you, singular informal	decide	decide
Usted — you, singular formal	decida	decide (formal)
Nosotros / Nosotras — we; let’s…	decidamos	let’s decide
Vosotros / Vosotras — you, plural informal, mainly Spain	decidid	decide (plural, mainly Spain)
Ustedes — you, plural	decidan	decide (plural)

• Decide con calma. — Decide calmly.

Decidir negative commands

Negative commands use subjunctive-based forms. The particle no — “not / do not” — comes before the command form.

Pronoun and English meaning	Spanish	Natural English guide
Tú — you, singular informal	no decidas	do not decide
Usted — you, singular formal	no decida	do not decide (formal)
Nosotros / Nosotras — we; let’s…	no decidamos	let’s not decide
Vosotros / Vosotras — you, plural informal, mainly Spain	no decidáis	do not decide (plural, mainly Spain)
Ustedes — you, plural	no decidan	do not decide (plural)

• No decidas sin revisar los datos. — Do not decide without reviewing the data.

Common constructions with Decidir

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

• decidir + infinitive. — to decide to do something.
• decidir sobre algo. — to decide about / on something.
• decidirse a / por. — to make up one’s mind to / choose after reflection.

Example sentences with Decidir

These examples reinforce the target verb across useful forms and contexts already explained in the lesson.

• Decido después de revisar toda la información. — I decide after reviewing all the information.
• Ayer decidimos esperar. — Yesterday we decided to wait.
• Están decidiendo el presupuesto. — They are deciding the budget.
• Espero que decidas pronto. — I hope you decide soon.
• Ya hemos decidido la fecha. — We have already decided the date.
• Decide qué necesitas primero. — Decide what you need first.

Regional and usage notes for Decidir

The core tables retain tú, usted, vosotros/vosotras, and ustedes for project comparability. In regions using voseo, present-indicative and affirmative-command forms can differ from the core tú forms. The verified forms below are regional additions, not replacements for the main paradigm.

• Vos decidís el horario. — You decide the schedule. (voseo)
• Decidí con calma. — Decide calmly. (affirmative vos command)

This is a stable regular -IR verb, so tense selection matters more than memorizing irregular forms. Keep the core non-pronominal paradigm separate from pronominal constructions, where the required clitic changes the sentence structure without changing the regular stem.