Iluminar Conjugation in Spanish
iluminar means "to light up, to illuminate" in English, and it comes up when people talk about the room with a candle, the theatre stage, the street with new street lamps and the garden at night. This page gives you the complete conjugation of iluminar in every tense and mood — present, preterite, imperfect, future, conditional, the four perfect tenses, both subjunctive tenses and the imperative — with all six persons, plus the gerund and the past participle. Every form below comes from VerbFlow's verified conjugation tables, so you can trust the accents and the spelling changes. iluminar is a regular -ar verb, and the notes under each tense explain exactly where it follows the rules and where it breaks them. To hear it in a real sentence: Cada día, yo ilumino la habitación con una vela. — "Every day, I light up the room with a candle." Work through the tables, read the notes, then test yourself with the quiz at the end of the page.
Quick facts
- Infinitive: iluminar
- English: to light up, to illuminate
- Verb type: regular -ar verb
- Gerund: iluminando
- Past participle: iluminado
- Auxiliary verb: haber (all compound tenses use haber + iluminado)
Full conjugation table
Every tense of iluminar with all six persons. The gerund is iluminando and the past participle is iluminado.
Present indicative
| Person | Form |
|---|---|
| yo | ilumino |
| tú | iluminas |
| él/ella/Ud. | ilumina |
| nosotros/as | iluminamos |
| vosotros/as | ilumináis |
| ellos/ellas/Uds. | iluminan |
Preterite (past)
| Person | Form |
|---|---|
| yo | iluminé |
| tú | iluminaste |
| él/ella/Ud. | iluminó |
| nosotros/as | iluminamos |
| vosotros/as | iluminasteis |
| ellos/ellas/Uds. | iluminaron |
Imperfect
| Person | Form |
|---|---|
| yo | iluminaba |
| tú | iluminabas |
| él/ella/Ud. | iluminaba |
| nosotros/as | iluminábamos |
| vosotros/as | iluminabais |
| ellos/ellas/Uds. | iluminaban |
Future
| Person | Form |
|---|---|
| yo | iluminaré |
| tú | iluminarás |
| él/ella/Ud. | iluminará |
| nosotros/as | iluminaremos |
| vosotros/as | iluminaréis |
| ellos/ellas/Uds. | iluminarán |
Conditional
| Person | Form |
|---|---|
| yo | iluminaría |
| tú | iluminarías |
| él/ella/Ud. | iluminaría |
| nosotros/as | iluminaríamos |
| vosotros/as | iluminaríais |
| ellos/ellas/Uds. | iluminarían |
Present perfect
| Person | Form |
|---|---|
| yo | he iluminado |
| tú | has iluminado |
| él/ella/Ud. | ha iluminado |
| nosotros/as | hemos iluminado |
| vosotros/as | habéis iluminado |
| ellos/ellas/Uds. | han iluminado |
Pluperfect
| Person | Form |
|---|---|
| yo | había iluminado |
| tú | habías iluminado |
| él/ella/Ud. | había iluminado |
| nosotros/as | habíamos iluminado |
| vosotros/as | habíais iluminado |
| ellos/ellas/Uds. | habían iluminado |
Future perfect
| Person | Form |
|---|---|
| yo | habré iluminado |
| tú | habrás iluminado |
| él/ella/Ud. | habrá iluminado |
| nosotros/as | habremos iluminado |
| vosotros/as | habréis iluminado |
| ellos/ellas/Uds. | habrán iluminado |
Conditional perfect
| Person | Form |
|---|---|
| yo | habría iluminado |
| tú | habrías iluminado |
| él/ella/Ud. | habría iluminado |
| nosotros/as | habríamos iluminado |
| vosotros/as | habríais iluminado |
| ellos/ellas/Uds. | habrían iluminado |
Present subjunctive
| Person | Form |
|---|---|
| yo | ilumine |
| tú | ilumines |
| él/ella/Ud. | ilumine |
| nosotros/as | iluminemos |
| vosotros/as | iluminéis |
| ellos/ellas/Uds. | iluminen |
Imperfect subjunctive (-ra)
| Person | Form |
|---|---|
| yo | iluminara |
| tú | iluminaras |
| él/ella/Ud. | iluminara |
| nosotros/as | ilumináramos |
| vosotros/as | iluminarais |
| ellos/ellas/Uds. | iluminaran |
Imperative (affirmative)
| Person | Form |
|---|---|
| tú | ilumina |
| él/ella/Ud. | ilumine |
| nosotros/as | iluminemos |
| vosotros/as | iluminad |
| ellos/ellas/Uds. | iluminen |
Imperative (negative)
| Person | Form |
|---|---|
| tú | ilumines |
| él/ella/Ud. | ilumine |
| nosotros/as | iluminemos |
| vosotros/as | iluminéis |
| ellos/ellas/Uds. | iluminen |
Notes on each tense
A short note for every tense: when it is used, one example, and anything irregular about iluminar in that tense.
Present indicative
The present indicative of iluminar is used for routines, habits, general truths and things happening right now. Cada día, yo ilumino la habitación con una vela. — "Every day, I light up the room with a candle." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Learn the six forms in the table above, and practise them with the complements in the examples section below.
Preterite (past)
The preterite (past) of iluminar is used for one action that started and finished in the past. Ayer, yo iluminé el escenario del teatro. — "Yesterday, I lighted up the theatre stage." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Say each form aloud with the complement after it, so the person and the ending stay linked in your memory.
Imperfect
The imperfect of iluminar is used for an ongoing or repeated action in the past, background description and habits that no longer happen. Antes, yo iluminaba la calle con farolas nuevas. — "In the past, I used to light up the street with new street lamps." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Compare the forms with the present tense as you learn them, and the pattern will stay clear.
Future
The future of iluminar is used for what will happen, plans and predictions. Mañana, nosotros iluminaremos el jardín por la noche. — "Tomorrow, we will light up the garden at night." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Learn the six forms in the table above, and practise them with the complements in the examples section below.
Conditional
The conditional of iluminar is used for what would happen, hypothetical situations and polite requests. Si pudieras, tú iluminarías la habitación con una vela. — "If you could, you would light up the room with a candle." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Say each form aloud with the complement after it, so the person and the ending stay linked in your memory.
Present perfect
The present perfect of iluminar is used for an action completed in the recent past that still matters now, or life experience up to now. Yo he iluminado el escenario del teatro. — "I have lighted up the theatre stage." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Compare the forms with the present tense as you learn them, and the pattern will stay clear.
Pluperfect
The pluperfect of iluminar is used for an action that had already happened before another past action. Antes de la fiesta, yo había iluminado la calle con farolas nuevas. — "Before the party, I had lighted up the street with new street lamps." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Learn the six forms in the table above, and practise them with the complements in the examples section below.
Future perfect
The future perfect of iluminar is used for an action that will be finished by a point in the future. Para mañana, yo habré iluminado el jardín por la noche. — "By tomorrow, I will have lighted up the garden at night." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Say each form aloud with the complement after it, so the person and the ending stay linked in your memory.
Conditional perfect
The conditional perfect of iluminar is used for what would have happened if things had been different. Si hubiera podido, yo habría iluminado la habitación con una vela. — "If I had been able to, I would have lighted up the room with a candle." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Compare the forms with the present tense as you learn them, and the pattern will stay clear.
Present subjunctive
The present subjunctive of iluminar is used for wishes, doubts, emotions and requests after expressions such as espero que. Espero que él ilumine el escenario del teatro. — "I hope that he/she lights up the theatre stage." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Learn the six forms in the table above, and practise them with the complements in the examples section below.
Imperfect subjunctive (-ra)
The imperfect subjunctive (-ra) of iluminar is used for the same subjunctive meanings in the past, and in si clauses about unreal situations. Si él iluminara la calle con farolas nuevas, todo saldría mejor. — "If he/she lighted up the street with new street lamps, everything would turn out better." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Say each form aloud with the complement after it, so the person and the ending stay linked in your memory.
Imperative (affirmative)
The imperative (affirmative) of iluminar is used for orders, instructions and invitations. ¡Ilumina el jardín por la noche! — "Light up the garden at night!" For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Compare the forms with the present tense as you learn them, and the pattern will stay clear.
Imperative (negative)
The imperative (negative) of iluminar is used for prohibitions and negative orders. No ilumines la habitación con una vela. — "Do not light up the room with a candle." For iluminar this tense follows the regular -ar pattern: the stem ilumin- plus the usual endings. Learn the six forms in the table above, and practise them with the complements in the examples section below.
Examples: iluminar in real sentences
Ten sentences with iluminar, one for each main tense, each with its English translation. Read them aloud, then try changing the person and the complement to make your own versions.
- Cada día, yo ilumino la habitación con una vela. — "Every day, I light up the room with a candle." This is the present tense, used for a habit.
- Ayer, yo iluminé el escenario del teatro. — "Yesterday, I lighted up the theatre stage." This is the preterite, one finished action.
- Antes, yo iluminaba la calle con farolas nuevas. — "In the past, I used to light up the street with new street lamps." This is the imperfect, a repeated action in the past.
- Mañana, nosotros iluminaremos el jardín por la noche. — "Tomorrow, we will light up the garden at night." This is the future tense, a plan for tomorrow.
- Si pudieras, tú iluminarías la habitación con una vela. — "If you could, you would light up the room with a candle." This is the conditional, something that would happen.
- Yo he iluminado el escenario del teatro. — "I have lighted up the theatre stage." This is the present perfect, an action with present relevance.
- Espero que él ilumine la calle con farolas nuevas. — "I hope that he/she lights up the street with new street lamps." This is the present subjunctive, after espero que.
- Si él iluminara el jardín por la noche, todo saldría mejor. — "If he/she lighted up the garden at night, everything would turn out better." This is the imperfect subjunctive, in a si clause.
- ¡Ilumina la habitación con una vela! — "Light up the room with a candle!" This is the imperative, a direct order or request.
- Ahora, Yo estoy iluminando el escenario del teatro. — "Now, I am lighting up the theatre stage." This is the progressive, with estar and the gerund.
Common mistakes with iluminar
The errors learners actually make with iluminar, each with the wrong form, the right form, and why it is wrong.
Mistake 1: Adding a reflexive pronoun that does not belong
- Wrong: Yo me ilumino la habitación con una vela.
- Right: Yo ilumino la habitación con una vela.
- Why: iluminar is not reflexive, so there is no pronoun to add. Yo ilumino la habitación con una vela. is the correct sentence, and the extra pronoun changes the meaning.
Mistake 2: Dropping the accent on the vosotros form
- Wrong: Vosotros iluminais la habitación con una vela.
- Right: Vosotros ilumináis la habitación con una vela.
- Why: The vosotros form ilumináis carries a written accent. Without it the word is misspelled, and in writing the accent is part of the form.
Mistake 3: Using the present tense for yesterday
- Wrong: Ayer, yo ilumino el escenario del teatro.
- Right: Ayer, yo iluminé el escenario del teatro.
- Why: Ayer means yesterday, so the action is finished and needs the preterite. The present tense is for habits and routines, not for yesterday: Ayer, yo iluminé el escenario del teatro. — "Yesterday, I lighted up the theatre stage."
Mistake 4: Mixing up the gerund and the participle
- Wrong: Estoy iluminado la calle con farolas nuevas.
- Right: Estoy iluminando la calle con farolas nuevas.
- Why: After estar you need the gerund iluminando for the progressive. The participle iluminado goes with haber in the perfect tenses (he iluminado), never after estar.
Mistake 5: Using the él form for nosotros
- Wrong: Nosotros ilumina la habitación con una vela.
- Right: Nosotros iluminamos la habitación con una vela.
- Why: The person and the ending must match: nosotros takes iluminamos, while ilumina belongs to él and ella. Check the person first, then choose the form.
Quiz: iluminar conjugation
Test yourself with ten questions on iluminar. The answers are explained, so read them even when you get a question right.
1. What is the yo form of iluminar in the present tense?
- (a) iluminamos
- (b) ilumino
- (c) iluminas
- (d) ilumina
Answer: (b) ilumino. The yo form is ilumino. Check the person before you answer.
2. What is the tú form of iluminar in the present tense?
- (a) iluminas
- (b) ilumino
- (c) ilumina
- (d) iluminamos
Answer: (a) iluminas. The tú form is iluminas. Check the person before you answer.
3. What is the él/ella form of iluminar in the present tense?
- (a) ilumino
- (b) iluminas
- (c) iluminamos
- (d) ilumina
Answer: (d) ilumina. The él/ella form is ilumina. Check the person before you answer.
4. What is the nosotros form of iluminar in the present tense?
- (a) iluminas
- (b) ilumina
- (c) iluminamos
- (d) ilumino
Answer: (c) iluminamos. The nosotros form is iluminamos. Check the person before you answer.
5. What is the ellos/ellas form of iluminar in the present tense?
- (a) ilumina
- (b) iluminan
- (c) ilumino
- (d) iluminas
Answer: (b) iluminan. The ellos/ellas form is iluminan. Check the person before you answer.
6. What is the gerund of iluminar?
- (a) iluminar
- (b) iluminando
- (c) iluminado
- (d) ilumino
Answer: (b) iluminando. The gerund is iluminando, used for the progressive: estoy iluminando.
7. What is the past participle of iluminar?
- (a) iluminado
- (b) iluminando
- (c) iluminé
- (d) iluminar
Answer: (a) iluminado. The past participle is iluminado, used with haber in all perfect tenses: he iluminado.
8. Complete the sentence: Cada día, yo ___ la habitación con una vela.
- (a) iluminas
- (b) ilumina
- (c) iluminamos
- (d) ilumino
Answer: (d) ilumino. The sentence needs the yo form ilumino (Every day, I light up the room with a candle.)
9. What is the yo form of iluminar in the preterite?
- (a) iluminó
- (b) iluminamos
- (c) iluminé
- (d) iluminaste
Answer: (c) iluminé. The yo preterite is iluminé. The preterite describes one finished action.
10. Complete the sentence: Espero que él ___ la calle con farolas nuevas.
- (a) ilumine
- (b) ilumines
- (c) iluminemos
- (d) iluminéis
Answer: (a) ilumine. After espero que Spanish needs the subjunctive, and the él form is ilumine.
Frequently asked questions about iluminar
Is iluminar regular?
Yes. iluminar is a regular -ar verb: ilumino, iluminé, iluminaba, iluminaré. There are no spelling changes and no stem changes, so once you know the endings you can conjugate it in every tense.
What does iluminar mean, and when do I use it?
iluminar means "to light up, to illuminate" in English. Use it when you talk about the room with a candle, the theatre stage, the street with new street lamps and the garden at night — for example: Yo ilumino la habitación con una vela. — "I light up the room with a candle." It is a practical verb for everyday conversation, and it appears in all the tenses on this page.
How do you say it in a real sentence?
A natural sentence is: Yo ilumino la habitación con una vela. — "I light up the room with a candle." Change the person using the table above, and change the complement to talk about your own life: the verb stays the same, only the ending changes.
Is there a reflexive form of iluminar?
No. iluminar is not reflexive, so it is used without a pronoun: Yo ilumino la habitación con una vela. — "I light up the room with a candle." Adding me, te or se would change the meaning, so keep the verb plain unless you mean the reflexive partner.
When do I use the present tense instead of the preterite with iluminar?
Use the present for habits and routines: Yo ilumino la habitación con una vela. — "I light up the room with a candle." Use the preterite for one finished action: Ayer, yo iluminé la habitación con una vela. — "Yesterday, I lighted up the room with a candle." If the action happens regularly, choose the present; if it happened once and is finished, choose the preterite.