Ella VerbsHow to conjugate Concentrar in Spanish
concentrar to assemble, to concentrate, to focus Regular AR Verb
At a glance: Concentrar (to assemble, to concentrate, to focus) is a regular -AR verb in Spanish. In the present tense: concentro, concentras, concentra, concentramos, concentráis, concentran. Because it is fully regular, its endings apply directly to hundreds of other -AR verbs.
- Past participle
- concentrado assembled
- Gerund
- concentrando assembling
- Similar
- armar, centrar, concentrarse, enfocar
Table of contents
- Indicative tenses of Concentrar
- Concentrar in the Indicative Present
- Concentrar in the Indicative Preterite
- Concentrar in the Indicative Imperfect
- Concentrar in the Indicative Present Continuous
- Concentrar in the Indicative Informal Future
- Concentrar in the Indicative Future
- Concentrar in the Indicative Conditional
- Concentrar in the Indicative Present Perfect
- Concentrar in the Indicative Past Perfect
- Concentrar in the Indicative Future Perfect
- Concentrar in the Indicative Conditional Perfect
- Subjunctive tenses of Concentrar
- Imperative tenses of Concentrar
- Verbs that follow the same patterns
- Frequently asked questions
- Downloadable cheat sheet (PDF)
- Practise Concentrar conjugations (free mobile app)
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Indicative tenses of Concentrar
Concentrar in the Indicative Present
The Indicative Present of concentrar is used to talk about situations, events or thoughts that are happening now or in the near future. It is also used to talk about facts and truths. For example, “concentro”, meaning “I assemble”.
In Spanish, the Indicative Present is known as "El Presente".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentro | I assemble |
| Tú | concentras | you assemble |
| Ella / Él / Usted | concentra | s/he assembles |
| Nosotras / Nosotros | concentramos | we assemble |
| Vosotras / Vosotros | concentráis | you (plural) assemble |
| Ellas / Ellos / Ustedes | concentran | they assemble |
How it’s built: Regular: stem concentr- plus the -ar endings.
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Concentrar in the Indicative Preterite
The Indicative Preterite of concentrar is used to talk about actions completed in the past, at a specific point in time. For example, “concentré”, meaning “I assembled”.
In Spanish, the Indicative Preterite is known as "El Pretérito Indefinido".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentré | I assembled |
| Tú | concentraste | you assembled |
| Ella / Él / Usted | concentró | s/he assembled |
| Nosotras / Nosotros | concentramos | we assembled |
| Vosotras / Vosotros | concentrasteis | you (plural) assembled |
| Ellas / Ellos / Ustedes | concentraron | they assembled |
How it’s built: Regular: stem concentr- plus the -ar endings.
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Concentrar in the Indicative Imperfect
The Indicative Imperfect of concentrar is used to describe regular and repeated actions that happened in the past and descriptions of things you used to do. For example, “concentraba”, meaning “I used to assemble”.
In Spanish, the Indicative Imperfect is known as "El Pretérito Imperfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentraba | I used to assemble |
| Tú | concentrabas | you used to assemble |
| Ella / Él / Usted | concentraba | s/he used to assemble |
| Nosotras / Nosotros | concentrábamos | we used to assemble |
| Vosotras / Vosotros | concentrabais | you (plural) used to assemble |
| Ellas / Ellos / Ustedes | concentraban | they used to assemble |
How it’s built: Regular: stem concentr- plus the -ar endings.
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Concentrar in the Indicative Present Continuous
The Indicative Present Continuous of concentrar is used to talk about something that is happening continuously or right now. For example, “estoy concentrando”, meaning “I am assembling”.
In Spanish, the Indicative Present Continuous is known as "El Presente Progresivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | estoy concentrando | I am assembling |
| Tú | estás concentrando | you are assembling |
| Ella / Él / Usted | está concentrando | s/he is assembling |
| Nosotras / Nosotros | estamos concentrando | we are assembling |
| Vosotras / Vosotros | estáis concentrando | you (plural) are assembling |
| Ellas / Ellos / Ustedes | están concentrando | they are assembling |
How it’s built: Estar in the present (estoy, estás, está, estamos, estáis, están) plus the gerund concentrando.
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Concentrar in the Indicative Informal Future
The Indicative Informal Future of concentrar is used to talk about something that will happen in the future, especially in the near future. For example, “voy a concentrar”, meaning “I am going to assemble”.
In Spanish, the Indicative Informal Future is known as "El Futuro Próximo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | voy a concentrar | I am going to assemble |
| Tú | vas a concentrar | you are going to assemble |
| Ella / Él / Usted | va a concentrar | s/he is going to assemble |
| Nosotras / Nosotros | vamos a concentrar | we are going to assemble |
| Vosotras / Vosotros | vais a concentrar | you (plural) are going to assemble |
| Ellas / Ellos / Ustedes | van a concentrar | they are going to assemble |
How it’s built: Ir in the present (voy, vas, va, vamos, vais, van), then a, then the infinitive concentrar.
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Concentrar in the Indicative Future
The Indicative Future of concentrar is used to talk about something that will happen in the future. For example, “concentraré”, meaning “I will assemble”.
In Spanish, the Indicative Future is known as "El Futuro Simple".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentraré | I will assemble |
| Tú | concentrarás | you will assemble |
| Ella / Él / Usted | concentrará | s/he will assemble |
| Nosotras / Nosotros | concentraremos | we will assemble |
| Vosotras / Vosotros | concentraréis | you (plural) will assemble |
| Ellas / Ellos / Ustedes | concentrarán | they will assemble |
How it’s built: Regular: the infinitive concentrar plus the future endings.
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Concentrar in the Indicative Conditional
The Indicative Conditional of concentrar is used to talk about something that may happen in the future, hypothesis and probabilities. For example, “concentraría”, meaning “I would assemble”.
In Spanish, the Indicative Conditional is known as "El Condicional Simple".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentraría | I would assemble |
| Tú | concentrarías | you would assemble |
| Ella / Él / Usted | concentraría | s/he would assemble |
| Nosotras / Nosotros | concentraríamos | we would assemble |
| Vosotras / Vosotros | concentraríais | you (plural) would assemble |
| Ellas / Ellos / Ustedes | concentrarían | they would assemble |
How it’s built: Regular: the infinitive concentrar plus the conditional endings.
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Concentrar in the Indicative Present Perfect
The Indicative Present Perfect of concentrar is used to describe actions that started recently (in the past) and are still happening now or things that have been done recently. For example, “he concentrado”, meaning “I have assembled”.
In Spanish, the Indicative Present Perfect is known as "El Pretérito Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | he concentrado | I have assembled |
| Tú | has concentrado | you have assembled |
| Ella / Él / Usted | ha concentrado | s/he has assembled |
| Nosotras / Nosotros | hemos concentrado | we have assembled |
| Vosotras / Vosotros | habéis concentrado | you (plural) have assembled |
| Ellas / Ellos / Ustedes | han concentrado | they have assembled |
How it’s built: Haber in the present (he, has, ha, hemos, habéis, han) plus the past participle concentrado.
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Concentrar in the Indicative Past Perfect
The Indicative Past Perfect of concentrar is used to talk about actions that happened before another action in the past. For example, “había concentrado”, meaning “I had assembled”.
In Spanish, the Indicative Past Perfect is known as "El Pretérito Pluscuamperfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | había concentrado | I had assembled |
| Tú | habías concentrado | you had assembled |
| Ella / Él / Usted | había concentrado | s/he had assembled |
| Nosotras / Nosotros | habíamos concentrado | we had assembled |
| Vosotras / Vosotros | habíais concentrado | you (plural) had assembled |
| Ellas / Ellos / Ustedes | habían concentrado | they had assembled |
How it’s built: Haber in the imperfect (había, habías, había, habíamos, habíais, habían) plus the past participle concentrado.
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Concentrar in the Indicative Future Perfect
The Indicative Future Perfect of concentrar is used to talk about something that will have happened in the future after something else has already happened. For example, “habré concentrado”, meaning “I will have assembled”.
In Spanish, the Indicative Future Perfect is known as "El Futuro Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | habré concentrado | I will have assembled |
| Tú | habrás concentrado | you will have assembled |
| Ella / Él / Usted | habrá concentrado | s/he will have assembled |
| Nosotras / Nosotros | habremos concentrado | we will have assembled |
| Vosotras / Vosotros | habréis concentrado | you (plural) will have assembled |
| Ellas / Ellos / Ustedes | habrán concentrado | they will have assembled |
How it’s built: Haber in the future (habré, habrás, habrá, habremos, habréis, habrán) plus the past participle concentrado.
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Concentrar in the Indicative Conditional Perfect
The Indicative Conditional Perfect of concentrar is used to talk about something that would have happened in the past but didn’t due to another action. For example, “habría concentrado”, meaning “I would have assembled”.
In Spanish, the Indicative Conditional Perfect is known as "El Condicional Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | habría concentrado | I would have assembled |
| Tú | habrías concentrado | you would have assembled |
| Ella / Él / Usted | habría concentrado | s/he would have assembled |
| Nosotras / Nosotros | habríamos concentrado | we would have assembled |
| Vosotras / Vosotros | habríais concentrado | you (plural) would have assembled |
| Ellas / Ellos / Ustedes | habrían concentrado | they would have assembled |
How it’s built: Haber in the conditional (habría, habrías, habría, habríamos, habríais, habrían) plus the past participle concentrado.
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Subjunctive tenses of Concentrar
Concentrar in the Subjunctive Present
The Subjunctive Present is used to talk about situations of uncertainty, or emotions such as wishes, desires and hopes. It differs from the indicative mood due to the uncertainty of the events which are being spoken about. For example, “concentre”, meaning “I assemble”.
In Spanish, the Subjunctive Present is known as "El Presente de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentre | I assemble |
| Tú | concentres | you assemble |
| Ella / Él / Usted | concentre | s/he assembles |
| Nosotras / Nosotros | concentremos | we assemble |
| Vosotras / Vosotros | concentréis | you (plural) assemble |
| Ellas / Ellos / Ustedes | concentren | they assemble |
How it’s built: Regular: stem concentr- plus the -ar subjunctive endings.
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Concentrar in the Subjunctive Imperfect
The Subjunctive Imperfect is used to speak about unlikely or uncertain events in the past or to cast an opinion (emotional) about something that happened in the past. For example, “concentrara”, meaning “I assembled”.
In Spanish, the Subjunctive Imperfect is known as "El Imperfecto Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentrara | I assembled |
| Tú | concentraras | you assembled |
| Ella / Él / Usted | concentrara | s/he assembled |
| Nosotras / Nosotros | concentráramos | we assembled |
| Vosotras / Vosotros | concentrarais | you (plural) assembled |
| Ellas / Ellos / Ustedes | concentraran | they assembled |
How it’s built: Regular: the ellas/ellos preterite, concentraron, without -ron, plus the -ra endings; nosotros adds an accent (concentráramos).
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Concentrar in the Subjunctive Future
The Subjunctive Future is used to speak about hypothetical situations, and actions/events that may happen in the future. For example, “concentrare”, meaning “I will assemble”.
In Spanish, the Subjunctive Future is known as "El Futuro de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | concentrare | I will assemble |
| Tú | concentrares | you will assemble |
| Ella / Él / Usted | concentrare | s/he will assemble |
| Nosotras / Nosotros | concentráremos | we will assemble |
| Vosotras / Vosotros | concentrareis | you (plural) will assemble |
| Ellas / Ellos / Ustedes | concentraren | they will assemble |
How it’s built: Regular: the ellas/ellos preterite, concentraron, without -ron, plus the -re endings; nosotros adds an accent (concentráremos).
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Concentrar in the Subjunctive Present Perfect
The Subjunctive Present Perfect is used to describe past actions or events that are still connected to the present day and to speak about an action that will have happened by a certain time in the future. For example, “haya concentrado”, meaning “I have assembled”.
In Spanish, the Subjunctive Present Perfect is known as "El Pretérito Perfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | haya concentrado | I have assembled |
| Tú | hayas concentrado | you have assembled |
| Ella / Él / Usted | haya concentrado | s/he has assembled |
| Nosotras / Nosotros | hayamos concentrado | we have assembled |
| Vosotras / Vosotros | hayáis concentrado | you (plural) have assembled |
| Ellas / Ellos / Ustedes | hayan concentrado | they have assembled |
How it’s built: Haber in the subjunctive present (haya, hayas, haya, hayamos, hayáis, hayan) plus the past participle concentrado.
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Concentrar in the Subjunctive Past Perfect
The Subjunctive Past Perfect is used to speak about hypothetical situations, and actions/events that occurred before other actions/events in the past. For example, “hubiera concentrado”, meaning “I had assembled”.
In Spanish, the Subjunctive Past Perfect is known as "El Pretérito Pluscuamperfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | hubiera concentrado | I had assembled |
| Tú | hubieras concentrado | you had assembled |
| Ella / Él / Usted | hubiera concentrado | s/he had assembled |
| Nosotras / Nosotros | hubiéramos concentrado | we had assembled |
| Vosotras / Vosotros | hubierais concentrado | you (plural) had assembled |
| Ellas / Ellos / Ustedes | hubieran concentrado | they had assembled |
How it’s built: Haber in the subjunctive imperfect (hubiera, hubieras, hubiera, hubiéramos, hubierais, hubieran) plus the past participle concentrado.
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Concentrar in the Subjunctive Future Perfect
The Subjunctive Future Perfect is used to speak about something that will have happened if a hypothetical situations occurs in the future. For example, “hubiere concentrado”, meaning “I will have assembled”.
In Spanish, the Subjunctive Future Perfect is known as "El Futuro Perfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | hubiere concentrado | I will have assembled |
| Tú | hubieres concentrado | you will have assembled |
| Ella / Él / Usted | hubiere concentrado | s/he will have assembled |
| Nosotras / Nosotros | hubiéremos concentrado | we will have assembled |
| Vosotras / Vosotros | hubiereis concentrado | you (plural) will have assembled |
| Ellas / Ellos / Ustedes | hubieren concentrado | they will have assembled |
How it’s built: Haber in the subjunctive future (hubiere, hubieres, hubiere, hubiéremos, hubiereis, hubieren) plus the past participle concentrado.
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Imperative tenses of Concentrar
Concentrar in the Imperative Affirmative
The Imperative Affirmative is used to give orders and commands, to tell someone to do something. For example, “concentre”, meaning “(to you formal) assemble!”.
In Spanish, the Imperative Affirmative is known as "El Imperativo Afirmativo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | - | - |
| Tú | concentra | (to you) assemble! |
| Ella / Él / Usted | concentre | (to you formal) assemble! |
| Nosotras / Nosotros | concentremos | let's assemble! |
| Vosotras / Vosotros | concentrad | (to you plural) assemble! |
| Ellas / Ellos / Ustedes | concentren | (to you plural formal) assemble! |
How it’s built: Tú takes the ella/él present (concentra); usted, nosotros and ustedes take the subjunctive present (concentre, concentremos, concentren); vosotros swaps the final r of the infinitive for a d (concentrad).
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Concentrar in the Imperative Negative
The Imperative Negative is used to give orders and commands, telling someone not to do something. For example, “no concentre”, meaning “(to you formal) don't assemble!”.
In Spanish, the Imperative Negative is known as "El Imperativo Negativo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | - | - |
| Tú | no concentres | (to you) don't assemble! |
| Ella / Él / Usted | no concentre | (to you formal) don't assemble! |
| Nosotras / Nosotros | no concentremos | let's not assemble! |
| Vosotras / Vosotros | no concentréis | (to you plural) don't assemble! |
| Ellas / Ellos / Ustedes | no concentren | (to you plural formal) don't assemble! |
How it’s built: No plus the subjunctive present: no concentres, no concentre, no concentremos, no concentréis, no concentren.
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Frequently asked questions about Concentrar
Is concentrar a regular or irregular verb?
Concentrar is a fully regular -AR verb. It follows the standard -AR conjugation pattern in every tense and mood without any stem changes, spelling changes, or irregular forms. This makes it a model verb for learning the -AR conjugation system.
How do you conjugate concentrar in the present tense (presente)?
In the present tense (presente), concentrar is conjugated as: yo concentro, tú concentras, él/ella/usted concentra, nosotros concentramos, vosotros concentráis, ellos/ellas/ustedes concentran. The present tense is used To talk about situations, events or thoughts that are happening now or in the near future. It is also used to talk about facts and truths.
How do you conjugate concentrar in the preterite (pretérito indefinido)?
In the preterite (pretérito indefinido), concentrar is conjugated as: yo concentré, tú concentraste, él/ella/usted concentró, nosotros concentramos, vosotros concentrasteis, ellos/ellas/ustedes concentraron. The preterite is used To talk about actions completed in the past, at a specific point in time.
How do you conjugate concentrar in the imperfect (pretérito imperfecto)?
In the imperfect (pretérito imperfecto), concentrar is conjugated as: yo concentraba, tú concentrabas, él/ella/usted concentraba, nosotros concentrábamos, vosotros concentrabais, ellos/ellas/ustedes concentraban. The imperfect is used To describe regular and repeated actions that happened in the past and descriptions of things you used to do.
How do you conjugate concentrar in the future tense (futuro simple)?
In the future tense (futuro simple), concentrar is conjugated as: yo concentraré, tú concentrarás, él/ella/usted concentrará, nosotros concentraremos, vosotros concentraréis, ellos/ellas/ustedes concentrarán. The future tense is used To talk about something that will happen in the future.
How do you conjugate concentrar in the present subjunctive (subjuntivo presente)?
In the present subjunctive (subjuntivo presente), concentrar is conjugated as: yo concentre, tú concentres, él/ella/usted concentre, nosotros concentremos, vosotros concentréis, ellos/ellas/ustedes concentren. The present subjunctive is used To talk about situations of uncertainty, or emotions such as wishes, desires and hopes. It differs from the indicative mood due to the uncertainty of the events which are being spoken about.
What is the difference between concentrar and concentrarse?
Concentrar means "to assemble, to concentrate, to focus" in the standard sense. Concentrarse is the reflexive form, which typically means the action is done to oneself or to each other. The reflexive pronoun (me, te, se, nos, os, se) is added before the conjugated verb. For example, "no se concentran" instead of "no concentran".
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Want to explore other verb conjugations?
Why not check out Concentrarse – to concentrate, to focus or see the complete list of verbs here.
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