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How to conjugate Alterar in Spanish

To alter Regular AR Verb

Introduction

Alterar is the Spanish verb for "to alter". It is a regular AR verb. Read on below to see how it is conjugated in the 18 major Spanish tenses!

ItemSpanishEnglish
Infinitivealterarto alter
Past participlealteradoaltered
Gerundalterandoaltering
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Indicative Tenses of Alterar

Alterar in the Indicative Present

The Indicative Present of alterar 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, "altero", meaning "I alter".

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

PronounSpanishEnglish
YoalteroI alter
alterasyou alter
Ella / Él / Ustedalteras/he alters, you (formal) alter
Nosotras / Nosotrosalteramoswe alter
Vosotras / Vosotrosalteráisyou (plural) alter
Ellas / Ellos / Ustedesalteranthey alter,

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Alterar in the Indicative Preterite

The Indicative Preterite of alterar is used to talk about actions completed in the past, at a specific point in time. For example, "alteré", meaning "I altered".

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

PronounSpanishEnglish
YoalteréI altered
alterasteyou altered
Ella / Él / Ustedalterós/he altered, you (formal) altered
Nosotras / Nosotrosalteramoswe altered
Vosotras / Vosotrosalterasteisyou (plural) altered
Ellas / Ellos / Ustedesalteraronthey altered,

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Alterar in the Indicative Imperfect

The Indicative Imperfect of alterar is used to describe regular and repeated actions that happened in the past and descriptions of things you used to do. For example, "alteraba", meaning "I used to alter".

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

PronounSpanishEnglish
YoalterabaI used to alter
alterabasyou used to alter
Ella / Él / Ustedalterabas/he used to alter, you (formal) used to alter
Nosotras / Nosotrosalterábamoswe used to alter
Vosotras / Vosotrosalterabaisyou (plural) used to alter
Ellas / Ellos / Ustedesalterabanthey used to alter,

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Alterar in the Indicative Present Continuous

The Indicative Present Continuous of alterar is used to talk about something that is happening continuously or right now. For example, "estoy alterando", meaning "I am altering".

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

PronounSpanishEnglish
Yoestoy alterandoI am altering
estás alterandoyou are altering
Ella / Él / Ustedestá alterandos/he is altering, you (formal) are altering
Nosotras / Nosotrosestamos alterandowe are altering
Vosotras / Vosotrosestáis alterandoyou (plural) are altering
Ellas / Ellos / Ustedesestán alterandothey are altering,

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Alterar in the Indicative Informal Future

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

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

PronounSpanishEnglish
Yovoy a alterarI am going to alter
vas a alteraryou are going to alter
Ella / Él / Ustedva a alterars/he is going to alter, you (formal) are going to alter
Nosotras / Nosotrosvamos a alterarwe are going to alter
Vosotras / Vosotrosvais a alteraryou (plural) are going to alter
Ellas / Ellos / Ustedesvan a alterarthey are going to alter,

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Alterar in the Indicative Future

The Indicative Future of alterar is used to talk about something that will happen in the future. For example, "alteraré", meaning "I will alter".

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

PronounSpanishEnglish
YoalteraréI will alter
alterarásyou will alter
Ella / Él / Ustedalterarás/he will alter, you (formal) will alter
Nosotras / Nosotrosalteraremoswe will alter
Vosotras / Vosotrosalteraréisyou (plural) will alter
Ellas / Ellos / Ustedesalteraránthey will alter,

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Alterar in the Indicative Conditional

The Indicative Conditional of alterar is used to talk about something that may happen in the future, hypothesis and probabilities. For example, "alteraría", meaning "I would alter".

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

PronounSpanishEnglish
YoalteraríaI would alter
alteraríasyou would alter
Ella / Él / Ustedalterarías/he would alter, you (formal) would alter
Nosotras / Nosotrosalteraríamoswe would alter
Vosotras / Vosotrosalteraríaisyou (plural) would alter
Ellas / Ellos / Ustedesalteraríanthey would alter,

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Alterar in the Indicative Present Perfect

The Indicative Present Perfect of alterar 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 alterado", meaning "I have altered".

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

PronounSpanishEnglish
Yohe alteradoI have altered
has alteradoyou have altered
Ella / Él / Ustedha alterados/he has altered, you (formal) have altered
Nosotras / Nosotroshemos alteradowe have altered
Vosotras / Vosotroshabéis alteradoyou (plural) have altered
Ellas / Ellos / Ustedeshan alteradothey have altered,

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Alterar in the Indicative Past Perfect

The Indicative Past Perfect of alterar is used to talk about actions that happened before another action in the past. For example, "había alterado", meaning "I had altered".

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

PronounSpanishEnglish
Yohabía alteradoI had altered
habías alteradoyou had altered
Ella / Él / Ustedhabía alterados/he had altered, you (formal) had altered
Nosotras / Nosotroshabíamos alteradowe had altered
Vosotras / Vosotroshabíais alteradoyou (plural) had altered
Ellas / Ellos / Ustedeshabían alteradothey had altered,

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Alterar in the Indicative Future Perfect

The Indicative Future Perfect of alterar is used to talk about something that will have happened in the future after something else has already happened. For example, "habré alterado", meaning "I will have altered".

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

PronounSpanishEnglish
Yohabré alteradoI will have altered
habrás alteradoyou will have altered
Ella / Él / Ustedhabrá alterados/he will have altered, you (formal) will have altered
Nosotras / Nosotroshabremos alteradowe will have altered
Vosotras / Vosotroshabréis alteradoyou (plural) will have altered
Ellas / Ellos / Ustedeshabrán alteradothey will have altered,

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Alterar in the Indicative Conditional Perfect

The Indicative Conditional Perfect of alterar is used to talk about something that would have happened in the past but didn’t due to another action. For example, "habría alterado", meaning "I would have altered".

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

PronounSpanishEnglish
Yohabría alteradoI would have altered
habrías alteradoyou would have altered
Ella / Él / Ustedhabría alterados/he would have altered, you (formal) would have altered
Nosotras / Nosotroshabríamos alteradowe would have altered
Vosotras / Vosotroshabríais alteradoyou (plural) would have altered
Ellas / Ellos / Ustedeshabrían alteradothey would have altered,

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Subjunctive Tenses of Alterar

Alterar 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, "altere", meaning "I alter".

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

PronounSpanishEnglish
YoaltereI alter
alteresyou alter
Ella / Él / Ustedalteres/he alters, you (formal) alter
Nosotras / Nosotrosalteremoswe alter
Vosotras / Vosotrosalteréisyou (plural) alter
Ellas / Ellos / Ustedesalterenthey alter,

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Alterar 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, "alterara", meaning "I altered".

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

PronounSpanishEnglish
YoalteraraI altered
alterarasyou altered
Ella / Él / Ustedalteraras/he altered, you (formal) altered
Nosotras / Nosotrosalteráramoswe altered
Vosotras / Vosotrosalteraraisyou (plural) altered
Ellas / Ellos / Ustedesalteraranthey altered,

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Alterar 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, "alterare", meaning "I will alter".

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

PronounSpanishEnglish
YoalterareI will alter
alteraresyou will alter
Ella / Él / Ustedalterares/he will alter, you (formal) will alter
Nosotras / Nosotrosalteráremoswe will alter
Vosotras / Vosotrosalterareisyou (plural) will alter
Ellas / Ellos / Ustedesalterarenthey will alter,

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Alterar 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 alterado", meaning "I have altered".

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

PronounSpanishEnglish
Yohaya alteradoI have altered
hayas alteradoyou have altered
Ella / Él / Ustedhaya alterados/he has altered, you (formal) have altered
Nosotras / Nosotroshayamos alteradowe have altered
Vosotras / Vosotroshayáis alteradoyou (plural) have altered
Ellas / Ellos / Ustedeshayan alteradothey have altered,

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Alterar 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 alterado", meaning "I had altered".

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

PronounSpanishEnglish
Yohubiera alteradoI had altered
hubieras alteradoyou had altered
Ella / Él / Ustedhubiera alterados/he had altered, you (formal) had altered
Nosotras / Nosotroshubiéramos alteradowe had altered
Vosotras / Vosotroshubierais alteradoyou (plural) had altered
Ellas / Ellos / Ustedeshubieran alteradothey had altered,

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Alterar 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 alterado", meaning "I will have altered".

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

PronounSpanishEnglish
Yohubiere alteradoI will have altered
hubieres alteradoyou will have altered
Ella / Él / Ustedhubiere alterados/he will have altered, you (formal) will have altered
Nosotras / Nosotroshubiéremos alteradowe will have altered
Vosotras / Vosotroshubiereis alteradoyou (plural) will have altered
Ellas / Ellos / Ustedeshubieren alteradothey will have altered,

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Imperative Tenses of Alterar

Alterar in the Imperative Affirmative

The Imperative Affirmative is used to give orders and commands, to tell someone to do something. For example, "altere", meaning "(to you formal) alter!".

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

PronounSpanishEnglish
Yo--
altera(to you) alter!
Ella / Él / Ustedaltere(to you formal) alter!
Nosotras / Nosotrosalteremoslet's alter!
Vosotras / Vosotrosalterad(to you plural) alter!
Ellas / Ellos / Ustedesalteren(to you plural formal) alter!

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Alterar in the Imperative Negative

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

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

PronounSpanishEnglish
Yo--
no alteres(to you) don't alter!
Ella / Él / Ustedno altere(to you formal) don't alter!
Nosotras / Nosotrosno alteremoslet's not alter!
Vosotras / Vosotrosno alteréis(to you plural) don't alter!
Ellas / Ellos / Ustedesno alteren(to you plural formal) don't alter!

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Download and print a cheat sheet of Alterar Spanish conjugation tables in image or PDF format:

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