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How to conjugate Reforzar in Spanish

reforzar to strengthen Irregular Verb

At a glance: Reforzar (to strengthen) is a irregular verb in Spanish. In the present tense: refuerzo, refuerzas, refuerza, reforzamos, reforzáis, refuerzan. Yo, tú, ella/él and ellas/ellos change o to ue (refuerzo, refuerzas, refuerza, refuerzan); nosotros and vosotros are regular. It is also irregular in the preterite (reforcé) and present subjunctive (refuerce).

Past participle
reforzado strengthened
Gerund
reforzando strengthening
Similar
fortalecer, potenciar
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Indicative tenses of Reforzar

Reforzar in the Indicative Present

The Indicative Present of reforzar 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, “refuerzo”, meaning “I strengthen”.

In Spanish, the Indicative Present is known as "El Presente".

PronounSpanishEnglish
YorefuerzoI strengthen
Túrefuerzasyou strengthen
Ella / Él / Ustedrefuerzas/he strengthens
Nosotras / Nosotrosreforzamoswe strengthen
Vosotras / Vosotrosreforzáisyou (plural) strengthen
Ellas / Ellos / Ustedesrefuerzanthey strengthen

How it’s built: Yo, tú, ella/él and ellas/ellos change o to ue (refuerzo, refuerzas, refuerza, refuerzan); nosotros and vosotros are regular.

Letters in red show where a form differs from the regular pattern.

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Reforzar in the Indicative Preterite

The Indicative Preterite of reforzar is used to talk about actions completed in the past, at a specific point in time. For example, “reforcé”, meaning “I strengthened”.

In Spanish, the Indicative Preterite is known as "El Pretérito Indefinido".

PronounSpanishEnglish
YoreforcéI strengthened
Túreforzasteyou strengthened
Ella / Él / Ustedreforzós/he strengthened
Nosotras / Nosotrosreforzamoswe strengthened
Vosotras / Vosotrosreforzasteisyou (plural) strengthened
Ellas / Ellos / Ustedesreforzaronthey strengthened

How it’s built: Yo changes z to c (reforcé); the other forms are regular.

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Reforzar in the Indicative Imperfect

The Indicative Imperfect of reforzar is used to describe regular and repeated actions that happened in the past and descriptions of things you used to do. For example, “reforzaba”, meaning “I used to strengthen”.

In Spanish, the Indicative Imperfect is known as "El Pretérito Imperfecto".

PronounSpanishEnglish
YoreforzabaI used to strengthen
Túreforzabasyou used to strengthen
Ella / Él / Ustedreforzabas/he used to strengthen
Nosotras / Nosotrosreforzábamoswe used to strengthen
Vosotras / Vosotrosreforzabaisyou (plural) used to strengthen
Ellas / Ellos / Ustedesreforzabanthey used to strengthen

How it’s built: Regular: stem reforz- plus the -ar endings.

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Reforzar in the Indicative Present Continuous

The Indicative Present Continuous of reforzar is used to talk about something that is happening continuously or right now. For example, “estoy reforzando”, meaning “I am strengthening”.

In Spanish, the Indicative Present Continuous is known as "El Presente Progresivo".

PronounSpanishEnglish
Yoestoy reforzandoI am strengthening
Túestás reforzandoyou are strengthening
Ella / Él / Ustedestá reforzandos/he is strengthening
Nosotras / Nosotrosestamos reforzandowe are strengthening
Vosotras / Vosotrosestáis reforzandoyou (plural) are strengthening
Ellas / Ellos / Ustedesestán reforzandothey are strengthening

How it’s built: Estar in the present (estoy, estás, está, estamos, estáis, están) plus the gerund reforzando.

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Reforzar in the Indicative Informal Future

The Indicative Informal Future of reforzar is used to talk about something that will happen in the future, especially in the near future. For example, “voy a reforzar”, meaning “I am going to strengthen”.

In Spanish, the Indicative Informal Future is known as "El Futuro Próximo".

PronounSpanishEnglish
Yovoy a reforzarI am going to strengthen
Túvas a reforzaryou are going to strengthen
Ella / Él / Ustedva a reforzars/he is going to strengthen
Nosotras / Nosotrosvamos a reforzarwe are going to strengthen
Vosotras / Vosotrosvais a reforzaryou (plural) are going to strengthen
Ellas / Ellos / Ustedesvan a reforzarthey are going to strengthen

How it’s built: Ir in the present (voy, vas, va, vamos, vais, van), then a, then the infinitive reforzar.

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Reforzar in the Indicative Future

The Indicative Future of reforzar is used to talk about something that will happen in the future. For example, “reforzaré”, meaning “I will strengthen”.

In Spanish, the Indicative Future is known as "El Futuro Simple".

PronounSpanishEnglish
YoreforzaréI will strengthen
Túreforzarásyou will strengthen
Ella / Él / Ustedreforzarás/he will strengthen
Nosotras / Nosotrosreforzaremoswe will strengthen
Vosotras / Vosotrosreforzaréisyou (plural) will strengthen
Ellas / Ellos / Ustedesreforzaránthey will strengthen

How it’s built: Regular: the infinitive reforzar plus the future endings.

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Reforzar in the Indicative Conditional

The Indicative Conditional of reforzar is used to talk about something that may happen in the future, hypothesis and probabilities. For example, “reforzaría”, meaning “I would strengthen”.

In Spanish, the Indicative Conditional is known as "El Condicional Simple".

PronounSpanishEnglish
YoreforzaríaI would strengthen
Túreforzaríasyou would strengthen
Ella / Él / Ustedreforzarías/he would strengthen
Nosotras / Nosotrosreforzaríamoswe would strengthen
Vosotras / Vosotrosreforzaríaisyou (plural) would strengthen
Ellas / Ellos / Ustedesreforzaríanthey would strengthen

How it’s built: Regular: the infinitive reforzar plus the conditional endings.

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Reforzar in the Indicative Present Perfect

The Indicative Present Perfect of reforzar 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 reforzado”, meaning “I have strengthened”.

In Spanish, the Indicative Present Perfect is known as "El Pretérito Perfecto".

PronounSpanishEnglish
Yohe reforzadoI have strengthened
Túhas reforzadoyou have strengthened
Ella / Él / Ustedha reforzados/he has strengthened
Nosotras / Nosotroshemos reforzadowe have strengthened
Vosotras / Vosotroshabéis reforzadoyou (plural) have strengthened
Ellas / Ellos / Ustedeshan reforzadothey have strengthened

How it’s built: Haber in the present (he, has, ha, hemos, habéis, han) plus the past participle reforzado.

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Reforzar in the Indicative Past Perfect

The Indicative Past Perfect of reforzar is used to talk about actions that happened before another action in the past. For example, “había reforzado”, meaning “I had strengthened”.

In Spanish, the Indicative Past Perfect is known as "El Pretérito Pluscuamperfecto".

PronounSpanishEnglish
Yohabía reforzadoI had strengthened
Túhabías reforzadoyou had strengthened
Ella / Él / Ustedhabía reforzados/he had strengthened
Nosotras / Nosotroshabíamos reforzadowe had strengthened
Vosotras / Vosotroshabíais reforzadoyou (plural) had strengthened
Ellas / Ellos / Ustedeshabían reforzadothey had strengthened

How it’s built: Haber in the imperfect (había, habías, había, habíamos, habíais, habían) plus the past participle reforzado.

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Reforzar in the Indicative Future Perfect

The Indicative Future Perfect of reforzar is used to talk about something that will have happened in the future after something else has already happened. For example, “habré reforzado”, meaning “I will have strengthened”.

In Spanish, the Indicative Future Perfect is known as "El Futuro Perfecto".

PronounSpanishEnglish
Yohabré reforzadoI will have strengthened
Túhabrás reforzadoyou will have strengthened
Ella / Él / Ustedhabrá reforzados/he will have strengthened
Nosotras / Nosotroshabremos reforzadowe will have strengthened
Vosotras / Vosotroshabréis reforzadoyou (plural) will have strengthened
Ellas / Ellos / Ustedeshabrán reforzadothey will have strengthened

How it’s built: Haber in the future (habré, habrás, habrá, habremos, habréis, habrán) plus the past participle reforzado.

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Reforzar in the Indicative Conditional Perfect

The Indicative Conditional Perfect of reforzar is used to talk about something that would have happened in the past but didn’t due to another action. For example, “habría reforzado”, meaning “I would have strengthened”.

In Spanish, the Indicative Conditional Perfect is known as "El Condicional Perfecto".

PronounSpanishEnglish
Yohabría reforzadoI would have strengthened
Túhabrías reforzadoyou would have strengthened
Ella / Él / Ustedhabría reforzados/he would have strengthened
Nosotras / Nosotroshabríamos reforzadowe would have strengthened
Vosotras / Vosotroshabríais reforzadoyou (plural) would have strengthened
Ellas / Ellos / Ustedeshabrían reforzadothey would have strengthened

How it’s built: Haber in the conditional (habría, habrías, habría, habríamos, habríais, habrían) plus the past participle reforzado.

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Subjunctive tenses of Reforzar

Reforzar 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, “refuerce”, meaning “I strengthen”.

In Spanish, the Subjunctive Present is known as "El Presente de Subjuntivo".

PronounSpanishEnglish
YorefuerceI strengthen
Túrefuercesyou strengthen
Ella / Él / Ustedrefuerces/he strengthens
Nosotras / Nosotrosreforcemoswe strengthen
Vosotras / Vosotrosreforcéisyou (plural) strengthen
Ellas / Ellos / Ustedesrefuercenthey strengthen

How it’s built: Yo, tú, ella/él and ellas/ellos change o to ue and z to c (refuerce, refuerces, refuerce, refuercen); nosotros and vosotros change z to c (reforcemos, reforcéis).

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Reforzar 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, “reforzara”, meaning “I strengthened”.

In Spanish, the Subjunctive Imperfect is known as "El Imperfecto Subjuntivo".

PronounSpanishEnglish
YoreforzaraI strengthened
Túreforzarasyou strengthened
Ella / Él / Ustedreforzaras/he strengthened
Nosotras / Nosotrosreforzáramoswe strengthened
Vosotras / Vosotrosreforzaraisyou (plural) strengthened
Ellas / Ellos / Ustedesreforzaranthey strengthened

How it’s built: Regular: the ellas/ellos preterite, reforzaron, without -ron, plus the -ra endings; nosotros adds an accent (reforzáramos).

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Reforzar 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, “reforzare”, meaning “I will strengthen”.

In Spanish, the Subjunctive Future is known as "El Futuro de Subjuntivo".

PronounSpanishEnglish
YoreforzareI will strengthen
Túreforzaresyou will strengthen
Ella / Él / Ustedreforzares/he will strengthen
Nosotras / Nosotrosreforzáremoswe will strengthen
Vosotras / Vosotrosreforzareisyou (plural) will strengthen
Ellas / Ellos / Ustedesreforzarenthey will strengthen

How it’s built: Regular: the ellas/ellos preterite, reforzaron, without -ron, plus the -re endings; nosotros adds an accent (reforzáremos).

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Reforzar 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 reforzado”, meaning “I have strengthened”.

In Spanish, the Subjunctive Present Perfect is known as "El Pretérito Perfecto de Subjuntivo".

PronounSpanishEnglish
Yohaya reforzadoI have strengthened
Túhayas reforzadoyou have strengthened
Ella / Él / Ustedhaya reforzados/he has strengthened
Nosotras / Nosotroshayamos reforzadowe have strengthened
Vosotras / Vosotroshayáis reforzadoyou (plural) have strengthened
Ellas / Ellos / Ustedeshayan reforzadothey have strengthened

How it’s built: Haber in the subjunctive present (haya, hayas, haya, hayamos, hayáis, hayan) plus the past participle reforzado.

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Reforzar 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 reforzado”, meaning “I had strengthened”.

In Spanish, the Subjunctive Past Perfect is known as "El Pretérito Pluscuamperfecto de Subjuntivo".

PronounSpanishEnglish
Yohubiera reforzadoI had strengthened
Túhubieras reforzadoyou had strengthened
Ella / Él / Ustedhubiera reforzados/he had strengthened
Nosotras / Nosotroshubiéramos reforzadowe had strengthened
Vosotras / Vosotroshubierais reforzadoyou (plural) had strengthened
Ellas / Ellos / Ustedeshubieran reforzadothey had strengthened

How it’s built: Haber in the subjunctive imperfect (hubiera, hubieras, hubiera, hubiéramos, hubierais, hubieran) plus the past participle reforzado.

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Reforzar 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 reforzado”, meaning “I will have strengthened”.

In Spanish, the Subjunctive Future Perfect is known as "El Futuro Perfecto de Subjuntivo".

PronounSpanishEnglish
Yohubiere reforzadoI will have strengthened
Túhubieres reforzadoyou will have strengthened
Ella / Él / Ustedhubiere reforzados/he will have strengthened
Nosotras / Nosotroshubiéremos reforzadowe will have strengthened
Vosotras / Vosotroshubiereis reforzadoyou (plural) will have strengthened
Ellas / Ellos / Ustedeshubieren reforzadothey will have strengthened

How it’s built: Haber in the subjunctive future (hubiere, hubieres, hubiere, hubiéremos, hubiereis, hubieren) plus the past participle reforzado.

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Imperative tenses of Reforzar

Reforzar in the Imperative Affirmative

The Imperative Affirmative is used to give orders and commands, to tell someone to do something. For example, “refuerce”, meaning “(to you formal) strengthen!”.

In Spanish, the Imperative Affirmative is known as "El Imperativo Afirmativo".

PronounSpanishEnglish
Yo--
Túrefuerza(to you) strengthen!
Ella / Él / Ustedrefuerce(to you formal) strengthen!
Nosotras / Nosotrosreforcemoslet's strengthen!
Vosotras / Vosotrosreforzad(to you plural) strengthen!
Ellas / Ellos / Ustedesrefuercen(to you plural formal) strengthen!

How it’s built: Tú takes the ella/él present (refuerza); usted, nosotros and ustedes take the subjunctive present (refuerce, reforcemos, refuercen); vosotros swaps the final r of the infinitive for a d (reforzad).

Letters in red show where a form differs from the regular pattern.

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Reforzar in the Imperative Negative

The Imperative Negative is used to give orders and commands, telling someone not to do something. For example, “no refuerce”, meaning “(to you formal) don't strengthen!”.

In Spanish, the Imperative Negative is known as "El Imperativo Negativo".

PronounSpanishEnglish
Yo--
Túno refuerces(to you) don't strengthen!
Ella / Él / Ustedno refuerce(to you formal) don't strengthen!
Nosotras / Nosotrosno reforcemoslet's not strengthen!
Vosotras / Vosotrosno reforcéis(to you plural) don't strengthen!
Ellas / Ellos / Ustedesno refuercen(to you plural formal) don't strengthen!

How it’s built: No plus the subjunctive present: no refuerces, no refuerce, no reforcemos, no reforcéis, no refuercen.

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Frequently asked questions about Reforzar

Is reforzar a regular or irregular verb?

Reforzar is an irregular Spanish verb. In the present tense: yo, tú, ella/él and ellas/ellos change o to ue (refuerzo, refuerzas, refuerza, refuerzan); nosotros and vosotros are regular. It is also irregular in the preterite (reforcé) and present subjunctive (refuerce).

How do you conjugate reforzar in the present tense (presente)?

In the present tense (presente), reforzar is conjugated as: yo refuerzo, tú refuerzas, él/ella/usted refuerza, nosotros reforzamos, vosotros reforzáis, ellos/ellas/ustedes refuerzan. 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 reforzar in the preterite (pretérito indefinido)?

In the preterite (pretérito indefinido), reforzar is conjugated as: yo reforcé, tú reforzaste, él/ella/usted reforzó, nosotros reforzamos, vosotros reforzasteis, ellos/ellas/ustedes reforzaron. The preterite is used To talk about actions completed in the past, at a specific point in time.

How do you conjugate reforzar in the imperfect (pretérito imperfecto)?

In the imperfect (pretérito imperfecto), reforzar is conjugated as: yo reforzaba, tú reforzabas, él/ella/usted reforzaba, nosotros reforzábamos, vosotros reforzabais, ellos/ellas/ustedes reforzaban. 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 reforzar in the future tense (futuro simple)?

In the future tense (futuro simple), reforzar is conjugated as: yo reforzaré, tú reforzarás, él/ella/usted reforzará, nosotros reforzaremos, vosotros reforzaréis, ellos/ellas/ustedes reforzarán. The future tense is used To talk about something that will happen in the future.

How do you conjugate reforzar in the present subjunctive (subjuntivo presente)?

In the present subjunctive (subjuntivo presente), reforzar is conjugated as: yo refuerce, tú refuerces, él/ella/usted refuerce, nosotros reforcemos, vosotros reforcéis, ellos/ellas/ustedes refuercen. 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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