Llenar Conjugation | How to Conjugate Llenar in Spanish

Llenar means “to fill or fill out.” You will learn its fully regular -AR conjugation, core meanings, common constructions, compound tenses, subjunctive forms, and commands.

Llenar conjugation at a glance

Verb type: Regular AR. The stem llen- remains stable across the paradigm, with regular gerund llenando and participle llenado.

Llenar gerund, past participle, and infinitive

The non-finite forms support infinitive, progressive, and compound constructions. The participle llenado stays invariant with haber.

Form	Spanish	Natural English guide
Infinitive	llenar	infinitive
Gerund	llenando	filling / filling out
Past participle	llenado	filled / filled out

Llenar meaning and essential uses

RAE’s central sense is occupying an empty space completely with something: Lleno el vaso de agua. — “I fill the glass with water.”

RAE also notes application/form completion as a common sense. Use llenar algo de + substance or regional/formal alternatives such as rellenar / cumplimentar for forms depending on variety.

Llenar conjugation pattern and pronoun placement

The stem llen- remains unchanged throughout the core paradigm.

There are no stem-changing, spelling-changing, preterite-stem, future-stem, gerund, or participle irregularities.

Llenar indicative and periphrastic conjugations

Llenar present tense conjugation

Present indicative — Use it for present states, habits, facts, and contextually near-future reference.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	lleno	I fill / fill out
Tú — you, singular informal	llenas	you fill / fill out
Él / Ella / Usted — he / she / you, singular formal	llena	he / she fills / fills out; you fill / fill out (formal)
Nosotros / Nosotras — we	llenamos	we fill / fill out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenáis	you fill / fill out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenan	they fill / fill out; you fill / fill out (plural)

• Lleno el vaso de agua. — I fill the glass with water.

Llenar preterite conjugation

Preterite — Use it for completed or bounded past events.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	llené	I filled / filled out
Tú — you, singular informal	llenaste	you filled / filled out
Él / Ella / Usted — he / she / you, singular formal	llenó	he / she filled / filled out; you filled / filled out (formal)
Nosotros / Nosotras — we	llenamos	we filled / filled out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenasteis	you filled / filled out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenaron	they filled / filled out; you filled / filled out (plural)

• Ayer llené el formulario. — Yesterday I filled out the form.

Llenar imperfect conjugation

Imperfect — Use it for habitual, descriptive, background, or ongoing past situations. Form it with haber + llenado.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	llenaba	I used to fill / fill out
Tú — you, singular informal	llenabas	you used to fill / fill out
Él / Ella / Usted — he / she / you, singular formal	llenaba	he / she used to fill / fill out; you used to fill / fill out (formal)
Nosotros / Nosotras — we	llenábamos	we used to fill / fill out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenabais	you used to fill / fill out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenaban	they used to fill / fill out; you used to fill / fill out (plural)

• Antes llenábamos las botellas a mano. — We used to fill the bottles by hand.

Llenar present progressive

Present progressive — Use it for an action or process in progress. Form it with estar + llenando.

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

• Estoy llenando el depósito. — I am filling the tank.

Llenar near future conjugation

Near future — Use it for a plan, intention, or expected event. Form it with ir a + llenar.

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

• Voy a llenar la caja de libros. — I am going to fill the box with books.

Llenar future tense conjugation

Simple future — Use it for future reference.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	llenaré	I will fill / fill out
Tú — you, singular informal	llenarás	you will fill / fill out
Él / Ella / Usted — he / she / you, singular formal	llenará	he / she will fill / fill out; you will fill / fill out (formal)
Nosotros / Nosotras — we	llenaremos	we will fill / fill out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenaréis	you will fill / fill out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenarán	they will fill / fill out; you will fill / fill out (plural)

• Llenaremos los recipientes mañana. — We will fill the containers tomorrow.

Llenar conditional conjugation

Conditional — Use it for hypothetical or conditional outcomes.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	llenaría	I would fill / fill out
Tú — you, singular informal	llenarías	you would fill / fill out
Él / Ella / Usted — he / she / you, singular formal	llenaría	he / she would fill / fill out; you would fill / fill out (formal)
Nosotros / Nosotras — we	llenaríamos	we would fill / fill out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenaríais	you would fill / fill out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenarían	they would fill / fill out; you would fill / fill out (plural)

• Llenaría el vaso solo hasta la mitad. — I would fill the glass only halfway.

Llenar present perfect conjugation

Present perfect — Use it for completed events linked to a present reference frame. Form it with haber + llenado.

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

• He llenado todos los campos. — I have filled in all the fields.

Llenar past perfect conjugation

Past perfect — Use it for an event completed before another past point. Form it with haber + llenado.

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

• Ya habíamos llenado el depósito. — We had already filled the tank.

Llenar future perfect conjugation

Future perfect — Use it for an event completed before a future point. Form it with haber + llenado.

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

• Para entonces habrán llenado todas las plazas. — By then they will have filled all the places.

Llenar conditional perfect conjugation

Conditional perfect — Use it for a hypothetical completed outcome. Form it with haber + llenado.

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

• Habría llenado el formulario antes. — I would have filled out the form earlier.

Llenar subjunctive conjugations

Llenar present subjunctive conjugation

Present subjunctive — Use it with wishes, influence, emotion, doubt, evaluation, necessity, possibility, or non-specific reference.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	llene	that I fill / fill out
Tú — you, singular informal	llenes	that you fill / fill out
Él / Ella / Usted — he / she / you, singular formal	llene	that he / she fill / fill out; that you fill / fill out (formal)
Nosotros / Nosotras — we	llenemos	that we fill / fill out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenéis	that you fill / fill out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenen	that they fill / fill out; that you fill / fill out (plural)

• Quiero que llenes esta botella. — I want you to fill this bottle.

Llenar imperfect subjunctive conjugation

Imperfect subjunctive — The main table uses the -ra series; the accepted -se series is also valid. Form it with haber + llenado.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	llenara	that I filled / filled out
Tú — you, singular informal	llenaras	that you filled / filled out
Él / Ella / Usted — he / she / you, singular formal	llenara	that he / she filled / filled out; that you filled / filled out (formal)
Nosotros / Nosotras — we	llenáramos	that we filled / filled out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenarais	that you filled / filled out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenaran	that they filled / filled out; that you filled / filled out (plural)

• Preferían que llenáramos el formulario juntos. — They preferred that we fill out the form together.
• Era mejor que llenases el depósito antes de salir. — It was better for you to fill the tank before leaving.

Llenar future subjunctive conjugation

Future subjunctive — Rare in modern everyday Spanish. It survives mainly in formal, legal, proverbial, literary, or historical contexts.

Pronoun and English meaning	Spanish	Natural English guide
Yo — I	llenare	if / when I should fill / fill out
Tú — you, singular informal	llenares	if / when you should fill / fill out
Él / Ella / Usted — he / she / you, singular formal	llenare	if / when he / she should fill / fill out; if / when you should fill / fill out (formal)
Nosotros / Nosotras — we	llenáremos	if / when we should fill / fill out
Vosotros / Vosotras — you, plural informal, mainly Spain	llenareis	if / when you should fill / fill out (plural)
Ellos / Ellas / Ustedes — they / you, plural	llenaren	if / when they should fill / fill out; if / when you should fill / fill out (plural)

• Quien llenare la solicitud deberá firmarla. — Whoever should fill out the application must sign it.

Llenar present perfect subjunctive conjugation

Present perfect subjunctive — Use it for completed events inside a present- or future-oriented subjunctive environment. Form it with haber + llenado.

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

• Me alegra que hayas llenado todos los campos. — I am glad that you filled in all the fields.

Llenar past perfect subjunctive conjugation

Past perfect subjunctive — The main table uses hubiera; hubiese is also accepted. Form it with haber + llenado.

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

• Si hubiera llenado el depósito, no habría tenido que parar. — If I had filled the tank, I would not have had to stop.
• Si hubieses llenado la caja demasiado, pesaría más. — If you had filled the box too much, it would weigh more.

Llenar future perfect subjunctive conjugation

Future perfect subjunctive — Rare in modern everyday Spanish. Treat it as a formal or historical reference form. Form it with haber + llenado.

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

• Si hubieren llenado formularios adicionales, deberán entregarlos. — If they should have completed additional forms, they must submit them.

Llenar imperative and commands

Commands directly address another person. The nosotros/nosotras row has exhortative “let’s…” value.

Llenar affirmative commands

These are the regular affirmative command forms.

Pronoun and English meaning	Spanish	Natural English guide
Tú — you, singular informal	llena	fill
Usted — you, singular formal	llene	fill (formal)
Nosotros / Nosotras — we; let’s…	llenemos	let’s fill
Vosotros / Vosotras — you, plural informal, mainly Spain	llenad	fill (plural)
Ustedes — you, plural	llenen	fill (plural formal)

• Llena el vaso hasta la mitad. — Fill the glass halfway.

Llenar negative commands

Negative commands use no plus the subjunctive-based form.

Pronoun and English meaning	Spanish	Natural English guide
Tú — you, singular informal	no llenes	do not fill
Usted — you, singular formal	no llene	do not fill (formal)
Nosotros / Nosotras — we; let’s…	no llenemos	let’s not fill
Vosotros / Vosotras — you, plural informal, mainly Spain	no llenéis	do not fill (plural)
Ustedes — you, plural	no llenen	do not fill (plural formal)

• No llenes demasiado la caja. — Do not overfill the box.

Common constructions with Llenar

These patterns capture the most useful complements and lexical frames.

• llenar algo de + substance/content. — to fill something with something.
• llenar un formulario / solicitud. — to fill out a form / application.
• llenarse de + noun. — pronominal extension: to fill up with something.

Example sentences with Llenar

These examples reinforce common usage.

• Llena la botella de agua. — Fill the bottle with water.
• La sala se llenó de gente. — The room filled with people.
• Necesito llenar este formulario. — I need to fill out this form.
• Espero que llenes todos los campos obligatorios. — I hope you fill in all required fields.
• Ya han llenado el depósito. — They have already filled the tank.
• Llena solo hasta la marca. — Fill only to the mark.

Regional and usage notes for Llenar

Core tables include tú, usted, vosotros/vosotras, and ustedes; voseo is noted separately where relevant.

• Vos llenás el formulario aquí. — You fill out the form here. (voseo)
• Llená la botella, por favor. — Fill the bottle, please. (affirmative vos command)

Llenar is fully regular. Focus on its complement patterns: fill a container, fill something de a substance, complete a form, and recognize pronominal llenarse when something becomes full.