Ella VerbsHow to conjugate Alertar in Spanish
alertar to alert Regular AR Verb
At a glance: Alertar (to alert) is a regular -AR verb in Spanish. In the present tense: alerto, alertas, alerta, alertamos, alertáis, alertan. Because it is fully regular, its endings apply directly to hundreds of other -AR verbs.
- Past participle
- alertado alerted
- Gerund
- alertando alerting
Table of contents
- Indicative tenses of Alertar
- Alertar in the Indicative Present
- Alertar in the Indicative Preterite
- Alertar in the Indicative Imperfect
- Alertar in the Indicative Present Continuous
- Alertar in the Indicative Informal Future
- Alertar in the Indicative Future
- Alertar in the Indicative Conditional
- Alertar in the Indicative Present Perfect
- Alertar in the Indicative Past Perfect
- Alertar in the Indicative Future Perfect
- Alertar in the Indicative Conditional Perfect
- Subjunctive tenses of Alertar
- Imperative tenses of Alertar
- Verbs that follow the same patterns
- Frequently asked questions
- Downloadable cheat sheet (PDF)
- Practise Alertar conjugations (free mobile app)
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Indicative tenses of Alertar
Alertar in the Indicative Present
The Indicative Present of alertar 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, “alerto”, meaning “I alert”.
In Spanish, the Indicative Present is known as "El Presente".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alerto | I alert |
| Tú | alertas | you alert |
| Ella / Él / Usted | alerta | s/he alerts |
| Nosotras / Nosotros | alertamos | we alert |
| Vosotras / Vosotros | alertáis | you (plural) alert |
| Ellas / Ellos / Ustedes | alertan | they alert |
How it’s built: Regular: stem alert- plus the -ar endings.
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Alertar in the Indicative Preterite
The Indicative Preterite of alertar is used to talk about actions completed in the past, at a specific point in time. For example, “alerté”, meaning “I alerted”.
In Spanish, the Indicative Preterite is known as "El Pretérito Indefinido".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alerté | I alerted |
| Tú | alertaste | you alerted |
| Ella / Él / Usted | alertó | s/he alerted |
| Nosotras / Nosotros | alertamos | we alerted |
| Vosotras / Vosotros | alertasteis | you (plural) alerted |
| Ellas / Ellos / Ustedes | alertaron | they alerted |
How it’s built: Regular: stem alert- plus the -ar endings.
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Alertar in the Indicative Imperfect
The Indicative Imperfect of alertar is used to describe regular and repeated actions that happened in the past and descriptions of things you used to do. For example, “alertaba”, meaning “I used to alert”.
In Spanish, the Indicative Imperfect is known as "El Pretérito Imperfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alertaba | I used to alert |
| Tú | alertabas | you used to alert |
| Ella / Él / Usted | alertaba | s/he used to alert |
| Nosotras / Nosotros | alertábamos | we used to alert |
| Vosotras / Vosotros | alertabais | you (plural) used to alert |
| Ellas / Ellos / Ustedes | alertaban | they used to alert |
How it’s built: Regular: stem alert- plus the -ar endings.
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Alertar in the Indicative Present Continuous
The Indicative Present Continuous of alertar is used to talk about something that is happening continuously or right now. For example, “estoy alertando”, meaning “I am alerting”.
In Spanish, the Indicative Present Continuous is known as "El Presente Progresivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | estoy alertando | I am alerting |
| Tú | estás alertando | you are alerting |
| Ella / Él / Usted | está alertando | s/he is alerting |
| Nosotras / Nosotros | estamos alertando | we are alerting |
| Vosotras / Vosotros | estáis alertando | you (plural) are alerting |
| Ellas / Ellos / Ustedes | están alertando | they are alerting |
How it’s built: Estar in the present (estoy, estás, está, estamos, estáis, están) plus the gerund alertando.
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Alertar in the Indicative Informal Future
The Indicative Informal Future of alertar is used to talk about something that will happen in the future, especially in the near future. For example, “voy a alertar”, meaning “I am going to alert”.
In Spanish, the Indicative Informal Future is known as "El Futuro Próximo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | voy a alertar | I am going to alert |
| Tú | vas a alertar | you are going to alert |
| Ella / Él / Usted | va a alertar | s/he is going to alert |
| Nosotras / Nosotros | vamos a alertar | we are going to alert |
| Vosotras / Vosotros | vais a alertar | you (plural) are going to alert |
| Ellas / Ellos / Ustedes | van a alertar | they are going to alert |
How it’s built: Ir in the present (voy, vas, va, vamos, vais, van), then a, then the infinitive alertar.
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Alertar in the Indicative Future
The Indicative Future of alertar is used to talk about something that will happen in the future. For example, “alertaré”, meaning “I will alert”.
In Spanish, the Indicative Future is known as "El Futuro Simple".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alertaré | I will alert |
| Tú | alertarás | you will alert |
| Ella / Él / Usted | alertará | s/he will alert |
| Nosotras / Nosotros | alertaremos | we will alert |
| Vosotras / Vosotros | alertaréis | you (plural) will alert |
| Ellas / Ellos / Ustedes | alertarán | they will alert |
How it’s built: Regular: the infinitive alertar plus the future endings.
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Alertar in the Indicative Conditional
The Indicative Conditional of alertar is used to talk about something that may happen in the future, hypothesis and probabilities. For example, “alertaría”, meaning “I would alert”.
In Spanish, the Indicative Conditional is known as "El Condicional Simple".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alertaría | I would alert |
| Tú | alertarías | you would alert |
| Ella / Él / Usted | alertaría | s/he would alert |
| Nosotras / Nosotros | alertaríamos | we would alert |
| Vosotras / Vosotros | alertaríais | you (plural) would alert |
| Ellas / Ellos / Ustedes | alertarían | they would alert |
How it’s built: Regular: the infinitive alertar plus the conditional endings.
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Alertar in the Indicative Present Perfect
The Indicative Present Perfect of alertar 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 alertado”, meaning “I have alerted”.
In Spanish, the Indicative Present Perfect is known as "El Pretérito Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | he alertado | I have alerted |
| Tú | has alertado | you have alerted |
| Ella / Él / Usted | ha alertado | s/he has alerted |
| Nosotras / Nosotros | hemos alertado | we have alerted |
| Vosotras / Vosotros | habéis alertado | you (plural) have alerted |
| Ellas / Ellos / Ustedes | han alertado | they have alerted |
How it’s built: Haber in the present (he, has, ha, hemos, habéis, han) plus the past participle alertado.
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Alertar in the Indicative Past Perfect
The Indicative Past Perfect of alertar is used to talk about actions that happened before another action in the past. For example, “había alertado”, meaning “I had alerted”.
In Spanish, the Indicative Past Perfect is known as "El Pretérito Pluscuamperfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | había alertado | I had alerted |
| Tú | habías alertado | you had alerted |
| Ella / Él / Usted | había alertado | s/he had alerted |
| Nosotras / Nosotros | habíamos alertado | we had alerted |
| Vosotras / Vosotros | habíais alertado | you (plural) had alerted |
| Ellas / Ellos / Ustedes | habían alertado | they had alerted |
How it’s built: Haber in the imperfect (había, habías, había, habíamos, habíais, habían) plus the past participle alertado.
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Alertar in the Indicative Future Perfect
The Indicative Future Perfect of alertar is used to talk about something that will have happened in the future after something else has already happened. For example, “habré alertado”, meaning “I will have alerted”.
In Spanish, the Indicative Future Perfect is known as "El Futuro Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | habré alertado | I will have alerted |
| Tú | habrás alertado | you will have alerted |
| Ella / Él / Usted | habrá alertado | s/he will have alerted |
| Nosotras / Nosotros | habremos alertado | we will have alerted |
| Vosotras / Vosotros | habréis alertado | you (plural) will have alerted |
| Ellas / Ellos / Ustedes | habrán alertado | they will have alerted |
How it’s built: Haber in the future (habré, habrás, habrá, habremos, habréis, habrán) plus the past participle alertado.
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Alertar in the Indicative Conditional Perfect
The Indicative Conditional Perfect of alertar is used to talk about something that would have happened in the past but didn’t due to another action. For example, “habría alertado”, meaning “I would have alerted”.
In Spanish, the Indicative Conditional Perfect is known as "El Condicional Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | habría alertado | I would have alerted |
| Tú | habrías alertado | you would have alerted |
| Ella / Él / Usted | habría alertado | s/he would have alerted |
| Nosotras / Nosotros | habríamos alertado | we would have alerted |
| Vosotras / Vosotros | habríais alertado | you (plural) would have alerted |
| Ellas / Ellos / Ustedes | habrían alertado | they would have alerted |
How it’s built: Haber in the conditional (habría, habrías, habría, habríamos, habríais, habrían) plus the past participle alertado.
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Subjunctive tenses of Alertar
Alertar 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, “alerte”, meaning “I alert”.
In Spanish, the Subjunctive Present is known as "El Presente de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alerte | I alert |
| Tú | alertes | you alert |
| Ella / Él / Usted | alerte | s/he alerts |
| Nosotras / Nosotros | alertemos | we alert |
| Vosotras / Vosotros | alertéis | you (plural) alert |
| Ellas / Ellos / Ustedes | alerten | they alert |
How it’s built: Regular: stem alert- plus the -ar subjunctive endings.
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Alertar 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, “alertara”, meaning “I alerted”.
In Spanish, the Subjunctive Imperfect is known as "El Imperfecto Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alertara | I alerted |
| Tú | alertaras | you alerted |
| Ella / Él / Usted | alertara | s/he alerted |
| Nosotras / Nosotros | alertáramos | we alerted |
| Vosotras / Vosotros | alertarais | you (plural) alerted |
| Ellas / Ellos / Ustedes | alertaran | they alerted |
How it’s built: Regular: the ellas/ellos preterite, alertaron, without -ron, plus the -ra endings; nosotros adds an accent (alertáramos).
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Alertar 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, “alertare”, meaning “I will alert”.
In Spanish, the Subjunctive Future is known as "El Futuro de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | alertare | I will alert |
| Tú | alertares | you will alert |
| Ella / Él / Usted | alertare | s/he will alert |
| Nosotras / Nosotros | alertáremos | we will alert |
| Vosotras / Vosotros | alertareis | you (plural) will alert |
| Ellas / Ellos / Ustedes | alertaren | they will alert |
How it’s built: Regular: the ellas/ellos preterite, alertaron, without -ron, plus the -re endings; nosotros adds an accent (alertáremos).
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Alertar 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 alertado”, meaning “I have alerted”.
In Spanish, the Subjunctive Present Perfect is known as "El Pretérito Perfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | haya alertado | I have alerted |
| Tú | hayas alertado | you have alerted |
| Ella / Él / Usted | haya alertado | s/he has alerted |
| Nosotras / Nosotros | hayamos alertado | we have alerted |
| Vosotras / Vosotros | hayáis alertado | you (plural) have alerted |
| Ellas / Ellos / Ustedes | hayan alertado | they have alerted |
How it’s built: Haber in the subjunctive present (haya, hayas, haya, hayamos, hayáis, hayan) plus the past participle alertado.
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Alertar 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 alertado”, meaning “I had alerted”.
In Spanish, the Subjunctive Past Perfect is known as "El Pretérito Pluscuamperfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | hubiera alertado | I had alerted |
| Tú | hubieras alertado | you had alerted |
| Ella / Él / Usted | hubiera alertado | s/he had alerted |
| Nosotras / Nosotros | hubiéramos alertado | we had alerted |
| Vosotras / Vosotros | hubierais alertado | you (plural) had alerted |
| Ellas / Ellos / Ustedes | hubieran alertado | they had alerted |
How it’s built: Haber in the subjunctive imperfect (hubiera, hubieras, hubiera, hubiéramos, hubierais, hubieran) plus the past participle alertado.
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Alertar 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 alertado”, meaning “I will have alerted”.
In Spanish, the Subjunctive Future Perfect is known as "El Futuro Perfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | hubiere alertado | I will have alerted |
| Tú | hubieres alertado | you will have alerted |
| Ella / Él / Usted | hubiere alertado | s/he will have alerted |
| Nosotras / Nosotros | hubiéremos alertado | we will have alerted |
| Vosotras / Vosotros | hubiereis alertado | you (plural) will have alerted |
| Ellas / Ellos / Ustedes | hubieren alertado | they will have alerted |
How it’s built: Haber in the subjunctive future (hubiere, hubieres, hubiere, hubiéremos, hubiereis, hubieren) plus the past participle alertado.
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Imperative tenses of Alertar
Alertar in the Imperative Affirmative
The Imperative Affirmative is used to give orders and commands, to tell someone to do something. For example, “alerte”, meaning “(to you formal) alert!”.
In Spanish, the Imperative Affirmative is known as "El Imperativo Afirmativo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | - | - |
| Tú | alerta | (to you) alert! |
| Ella / Él / Usted | alerte | (to you formal) alert! |
| Nosotras / Nosotros | alertemos | let's alert! |
| Vosotras / Vosotros | alertad | (to you plural) alert! |
| Ellas / Ellos / Ustedes | alerten | (to you plural formal) alert! |
How it’s built: Tú takes the ella/él present (alerta); usted, nosotros and ustedes take the subjunctive present (alerte, alertemos, alerten); vosotros swaps the final r of the infinitive for a d (alertad).
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Alertar in the Imperative Negative
The Imperative Negative is used to give orders and commands, telling someone not to do something. For example, “no alerte”, meaning “(to you formal) don't alert!”.
In Spanish, the Imperative Negative is known as "El Imperativo Negativo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | - | - |
| Tú | no alertes | (to you) don't alert! |
| Ella / Él / Usted | no alerte | (to you formal) don't alert! |
| Nosotras / Nosotros | no alertemos | let's not alert! |
| Vosotras / Vosotros | no alertéis | (to you plural) don't alert! |
| Ellas / Ellos / Ustedes | no alerten | (to you plural formal) don't alert! |
How it’s built: No plus the subjunctive present: no alertes, no alerte, no alertemos, no alertéis, no alerten.
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Frequently asked questions about Alertar
Is alertar a regular or irregular verb?
Alertar 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 alertar in the present tense (presente)?
In the present tense (presente), alertar is conjugated as: yo alerto, tú alertas, él/ella/usted alerta, nosotros alertamos, vosotros alertáis, ellos/ellas/ustedes alertan. 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 alertar in the preterite (pretérito indefinido)?
In the preterite (pretérito indefinido), alertar is conjugated as: yo alerté, tú alertaste, él/ella/usted alertó, nosotros alertamos, vosotros alertasteis, ellos/ellas/ustedes alertaron. The preterite is used To talk about actions completed in the past, at a specific point in time.
How do you conjugate alertar in the imperfect (pretérito imperfecto)?
In the imperfect (pretérito imperfecto), alertar is conjugated as: yo alertaba, tú alertabas, él/ella/usted alertaba, nosotros alertábamos, vosotros alertabais, ellos/ellas/ustedes alertaban. 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 alertar in the future tense (futuro simple)?
In the future tense (futuro simple), alertar is conjugated as: yo alertaré, tú alertarás, él/ella/usted alertará, nosotros alertaremos, vosotros alertaréis, ellos/ellas/ustedes alertarán. The future tense is used To talk about something that will happen in the future.
How do you conjugate alertar in the present subjunctive (subjuntivo presente)?
In the present subjunctive (subjuntivo presente), alertar is conjugated as: yo alerte, tú alertes, él/ella/usted alerte, nosotros alertemos, vosotros alertéis, ellos/ellas/ustedes alerten. 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.
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Downloadable cheat sheets
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Want to explore other verb conjugations?
Why not check out Alimentar – to feed, to nourish or see the complete list of verbs here.
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