Alarmar Conjugation in Spanish
The Spanish verb alarmar means to alarm, and it is a verb you will use again and again once you know it. Alarmar means to alarm, to frighten someone with worrying news or a warning. It is used for news, sounds and situations that cause fear, and it is fully regular. Like every Spanish verb, alarmar changes its ending for each person and tense, and this page gives you the complete picture: every tense, every person, the gerund and the past participle, all from the verified conjugation tables. For example, in the present tense you say alarmo a los vecinos con el ruido, and in the preterite you say alarmé a su familia con el mensaje. Work through the tables below, read the notes for each tense, and then test yourself with the examples, the common mistakes and the quiz at the end of the page.
Quick facts
- Infinitive: alarmar
- English: to alarm
- Verb type: regular -ar verb
- Ending: -ar
- Gerund: alarmando
- Past participle: alarmado
- Auxiliary verb: haber (all perfect tenses are formed with haber + alarmado)
Pronunciation is not listed on this page: the verified tables do not include IPA for alarmar, so no pronunciation is given rather than an invented one. Alarmar is fully regular: alarmo, alarma. It is alarming someone with news or a warning; asustar is frightening in general.
Full conjugation tables
Every form below comes from the verified conjugation tables for alarmar. The imperfect subjunctive is shown in its -ra forms; the -se forms use the same stem. For reflexive verbs, the pronoun column shows the reflexive pronoun that goes before each form.
Present indicative
| Person | Form |
|---|---|
| yo | alarmo |
| tú | alarmas |
| él/ella/Ud. | alarma |
| nosotros/as | alarmamos |
| vosotros/as | alarmáis |
| ellos/ellas/Uds. | alarman |
Preterite
| Person | Form |
|---|---|
| yo | alarmé |
| tú | alarmaste |
| él/ella/Ud. | alarmó |
| nosotros/as | alarmamos |
| vosotros/as | alarmasteis |
| ellos/ellas/Uds. | alarmaron |
Imperfect
| Person | Form |
|---|---|
| yo | alarmaba |
| tú | alarmabas |
| él/ella/Ud. | alarmaba |
| nosotros/as | alarmábamos |
| vosotros/as | alarmabais |
| ellos/ellas/Uds. | alarmaban |
Future
| Person | Form |
|---|---|
| yo | alarmaré |
| tú | alarmarás |
| él/ella/Ud. | alarmará |
| nosotros/as | alarmaremos |
| vosotros/as | alarmaréis |
| ellos/ellas/Uds. | alarmarán |
Conditional
| Person | Form |
|---|---|
| yo | alarmaría |
| tú | alarmarías |
| él/ella/Ud. | alarmaría |
| nosotros/as | alarmaríamos |
| vosotros/as | alarmaríais |
| ellos/ellas/Uds. | alarmarían |
Present perfect
| Person | Form |
|---|---|
| yo | he alarmado |
| tú | has alarmado |
| él/ella/Ud. | ha alarmado |
| nosotros/as | hemos alarmado |
| vosotros/as | habéis alarmado |
| ellos/ellas/Uds. | han alarmado |
Pluperfect
| Person | Form |
|---|---|
| yo | había alarmado |
| tú | habías alarmado |
| él/ella/Ud. | había alarmado |
| nosotros/as | habíamos alarmado |
| vosotros/as | habíais alarmado |
| ellos/ellas/Uds. | habían alarmado |
Future perfect
| Person | Form |
|---|---|
| yo | habré alarmado |
| tú | habrás alarmado |
| él/ella/Ud. | habrá alarmado |
| nosotros/as | habremos alarmado |
| vosotros/as | habréis alarmado |
| ellos/ellas/Uds. | habrán alarmado |
Conditional perfect
| Person | Form |
|---|---|
| yo | habría alarmado |
| tú | habrías alarmado |
| él/ella/Ud. | habría alarmado |
| nosotros/as | habríamos alarmado |
| vosotros/as | habríais alarmado |
| ellos/ellas/Uds. | habrían alarmado |
Present subjunctive
| Person | Form |
|---|---|
| yo | alarme |
| tú | alarmes |
| él/ella/Ud. | alarme |
| nosotros/as | alarmemos |
| vosotros/as | alarméis |
| ellos/ellas/Uds. | alarmen |
Imperfect subjunctive (-ra)
| Person | Form |
|---|---|
| yo | alarmara |
| tú | alarmaras |
| él/ella/Ud. | alarmara |
| nosotros/as | alarmáramos |
| vosotros/as | alarmarais |
| ellos/ellas/Uds. | alarmaran |
Imperative (affirmative)
| Person | Form |
|---|---|
| tú | alarma |
| él/ella/Ud. | alarme |
| nosotros/as | alarmemos |
| vosotros/as | alarmad |
| ellos/ellas/Uds. | alarmen |
Imperative (negative)
| Person | Form |
|---|---|
| tú | alarmes |
| él/ella/Ud. | alarme |
| nosotros/as | alarmemos |
| vosotros/as | alarméis |
| ellos/ellas/Uds. | alarmen |
Gerund and past participle
| Form | Spanish | Use |
|---|---|---|
| Gerund | alarmando | with estar for the progressive: estoy alarmando |
| Past participle | alarmado | with haber for the perfect tenses: he alarmado |
How to use each tense
Present indicative
Use the present for routines, general facts and what is happening right now. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the present looks like this in a real sentence: Alarmo a los vecinos con el ruido. Learn the present forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Preterite
Use the preterite for finished actions with a clear end, often with ayer, el año pasado or anoche. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the preterite looks like this in a real sentence: Ayer, alarmé a la población con la noticia. Learn the preterite forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Imperfect
Use the imperfect for background, habits and actions in progress in the past, often with de niño, antes or mientras. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the imperfect looks like this in a real sentence: De niño, alarmaba a su familia con el mensaje. Learn the imperfect forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Future
Use the future for plans, predictions and promises, often with mañana, el año que viene or pronto. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the future looks like this in a real sentence: Mañana, alarmaré a los pasajeros con la alarma. Learn the future forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Conditional
Use the conditional for polite requests, hypotheticals and what would happen, often with si clauses. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the conditional looks like this in a real sentence: Alarmaría a los vecinos con el ruido si pudiera. Learn the conditional forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Present perfect
Use the present perfect for recent actions and experiences, often with hoy, esta semana or ya. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the present perfect looks like this in a real sentence: Hoy, he alarmado a la población con la noticia. Learn the present perfect forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Pluperfect
Use the pluperfect when one past action happened before another past action. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the pluperfect looks like this in a real sentence: Había alarmado a su familia con el mensaje antes de salir. Learn the pluperfect forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Future perfect
Use the future perfect for something that will already be finished by a future time. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the future perfect looks like this in a real sentence: Para mañana, habré alarmado a los pasajeros con la alarma. Learn the future perfect forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Conditional perfect
Use the conditional perfect for what would have happened under different conditions. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the conditional perfect looks like this in a real sentence: Habría alarmado a los vecinos con el ruido con más tiempo. Learn the conditional perfect forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Present subjunctive
Use the present subjunctive after expressions of wish, doubt, emotion and hope, such as espero que or quiero que. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the present subjunctive looks like this in a real sentence: Espero que él alarme a la población con la noticia. Learn the present subjunctive forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Imperfect subjunctive (-ra)
Use the imperfect subjunctive after past wishes and in si clauses about the past, and note the -ra forms shown here; the -se forms use the same stem. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the imperfect subjunctive looks like this in a real sentence: Si él alarmara a su familia con el mensaje, todo cambiaría. Learn the imperfect subjunctive forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Imperative (affirmative)
Use the affirmative imperative for direct commands, instructions and invitations. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the affirmative imperative looks like this in a real sentence: ¡Alarma a los pasajeros con la alarma! Learn the affirmative imperative forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Imperative (negative)
Use the negative imperative, always with no, to tell someone not to do something. For this verb the tense is regular, so the forms follow the standard endings for its verb class. For alarmar, the negative imperative looks like this in a real sentence: No alarmes a los vecinos con el ruido. Learn the negative imperative forms in the table above alongside this example, and notice how the ending, not the stem, usually carries the meaning of the tense.
Example sentences
Ten natural sentences with alarmar, covering different tenses and persons. Each one uses a form from the tables above.
- Alarmo a los vecinos con el ruido. — I alarm the neighbours with the noise.
- Alarma a la población con la noticia. — He/she alarms the population with the news.
- Ayer, alarmé a su familia con el mensaje. — Yesterday, I alarmed his family with the message.
- Antes, nosotros alarmábamos a los pasajeros con la alarma. — Before, we used to alarm the passengers with the alarm.
- Mañana, tú alarmarás a los vecinos con el ruido. — Tomorrow, you will alarm the neighbours with the noise.
- Yo alarmaría a la población con la noticia si tuviera más tiempo. — I would alarm the population with the news if I had more time.
- Él ha alarmado a su familia con el mensaje. — He has alarmed his family with the message.
- Espero que él alarme a los pasajeros con la alarma. — I hope he alarms the passengers with the alarm.
- Yo ya había alarmado a los vecinos con el ruido antes de salir. — I had already alarmed the neighbours with the noise before leaving.
- Ellos alarmaban a la población con la noticia cuando eran jóvenes. — They used to alarm the population with the news when they were young.
Common mistakes
- Wrong: Yo alarma a los vecinos con el ruido. — Right: Yo alarmo a los vecinos con el ruido. — The person matters: alarma is the él/ella/Ud. form, while the yo form is alarmo. Using the third-person form with yo is one of the most common beginner errors.
- Wrong: Ayer yo alarmo a la población con la noticia. — Right: Ayer yo alarmé a la población con la noticia. — The present and the preterite are different tenses: alarmo is happening now, while alarmé is a finished action in the past. Use the preterite with ayer.
- Wrong: Treating alarmar and asustar as identical in every context. — Right: Alarmar means to alarm, while asustar means to frighten. — They overlap, but each has uses the other does not: alarmar fits sentences such as Alarmo a los vecinos con el ruido, while asustar belongs in a different sentence. Check the meaning you want before choosing.
- Wrong: Yo soy alarmado a la población con la noticia. — Right: Yo he alarmado a la población con la noticia. — Spanish perfect tenses use haber, not ser: he alarmado, has alarmado, ha alarmado. Ser plus the participle makes a passive, not a perfect tense.
- Wrong: De niño, yo alarmé a su familia con el mensaje todos los días. — Right: De niño, yo alarmaba a su familia con el mensaje todos los días. — For a repeated habit in the past, use the imperfect (alarmaba), not the preterite. The preterite (alarmé) is for one finished action.
Quiz: test yourself
Ten questions on alarmar. Choose the right form, then check the answer key below.
Complete the sentence: Yo ___ a los vecinos con el ruido. (present tense) A. alarmo B. alarmas C. alarma D. alarmamos
Complete the sentence: Ayer, él ___ a la población con la noticia. (preterite) A. alarmé B. alarmaste C. alarmaron D. alarmó
Complete the sentence: Antes, nosotros ___ a su familia con el mensaje. (imperfect) A. alarmabas B. alarmaban C. alarmábamos D. alarmaba
Complete the sentence: Mañana, tú ___ a los pasajeros con la alarma. (future) A. alarmaremos B. alarmarás C. alarmaré D. alarmará
Complete the sentence: Yo ___ a los vecinos con el ruido si pudiera. (conditional) A. alarmaría B. alarmarías C. alarmarían D. alarmo
Complete the sentence: Espero que él ___ a la población con la noticia. (present subjunctive) A. alarmes B. alarmemos C. alarmo D. alarme
Complete the sentence: Si yo ___ a su familia con el mensaje, todo cambiaría. (imperfect subjunctive, -ra form) A. alarmáramos B. alarmo C. alarmara D. alarmaras
Complete the sentence: Nosotros ___ a los pasajeros con la alarma. (present perfect) A. han alarmado B. hemos alarmado C. he alarmado D. has alarmado
Complete the command: ¡___ a los vecinos con el ruido! (affirmative imperative, tú) A. alarma B. alarme C. alarmemos D. alarmad
Which is the gerund of alarmar, used with estar for the progressive? A. alarmado B. alarmo C. alarmé D. alarmando
Answer key
- alarmo — The first-person present of alarmar is alarmo. The other options are the tú, él/ella and nosotros forms.
- alarmó — The third-person preterite of alarmar is alarmó, the form for a single finished action in the past.
- alarmábamos — The nosotros imperfect of alarmar is alarmábamos, used here for a repeated past habit.
- alarmarás — The second-person future of alarmar is alarmarás.
- alarmaría — The first-person conditional of alarmar is alarmaría, the form for what would happen.
- alarme — After espero que, the subjunctive is required: the third-person present subjunctive of alarmar is alarme.
- alarmara — The first-person imperfect subjunctive (-ra) of alarmar is alarmara.
- hemos alarmado — The nosotros present perfect of alarmar is hemos alarmado: hemos + alarmado.
- alarma — The affirmative tú imperative of alarmar is alarma.
- alarmando — The gerund of alarmar is alarmando: estoy alarmando. The participle alarmado is used with haber instead.
Frequently asked questions
What does alarmar mean in English?
Alarmar means to alarm. It is used in everyday situations such as Alarmo a los vecinos con el ruido. The exact English wording depends on the context, but the core meaning stays the same across the tenses.
Is alarmar regular or irregular?
Alarmar is a fully regular -ar verb, so every tense follows the standard endings for its class. Once you know the regular pattern, you can produce every form on this page, including alarmo in the present and alarmé in the preterite.
What is the difference between alarmar and asustar?
Alarmar means to alarm, while asustar means to frighten. They are easy to confuse because they appear in similar situations, but they are not interchangeable: use alarmar when you mean to alarm, as in Alarmo a los vecinos con el ruido, and use asustar for to frighten. When in doubt, check the object of the sentence — it usually shows which verb fits.
How do I say “I alarm” in the past?
It depends on the kind of past. For one finished action, use the preterite: yo alarmé a la población con la noticia. For a repeated habit or background in the past, use the imperfect: yo alarmaba a su familia con el mensaje. For something that has just happened, use the present perfect: yo he alarmado a la población con la noticia.
How do I practise alarmar?
Start with the present tense table, then drill the preterite and the imperfect, since those two past tenses cause the most mistakes. Try the alarmar examples and quiz page for more sentences, and use the Spanish Verb Quiz to test the forms under pressure.
Related links
- Alarmar in the present tense — the full present-tense table for alarmar.
- Alarmar examples and quiz — more example sentences and practice for alarmar.
- Spanish verbs — the Spanish hub, with every verb and tense guide.
- Alabar conjugation — another -ar verb to compare with alarmar.
- Alegar conjugation — another -ar verb to compare with alarmar.
- Alertar conjugation — another -ar verb to compare with alarmar.
- Spanish Verb Conjugator — conjugate any Spanish verb in every tense.
- Spanish Verb Quiz — test yourself on real conjugated forms.