Comenzar Conjugation 101: Conjugate Comenzar In Spanish

In this lesson

    Comenzar conjugation patterns can help you practice E to IE and consonant changes. Additionally, this is a common -AR verb that you’ll use in many situations. So, since knowing how to conjugate comenzar is a must for Spanish learners, in this guide, you’ll learn:

    Take Note: There are many tenses in Spanish. However, we don’t use them all. Many are simply old and outdated. As a result, in this guide, you’ll only learn the tenses you need to know to become fluent in Spanish. 

    Overview of Comenzar

    Verb CharacteristicProperty
    Verb Type-AR
    IrregularNo
    InfinitiveComenzar
    Gerund (Present Participle) FormComenzando
    Past Participle FormComenzado
    SynonymsEmpezar, iniciar.

    Stem Changes: E to IE

    • Present tense: comienz for all subject pronouns except ‘nosotros’ and ‘vosotros’.
    • Preterite tense: comenc only for ‘yo’
    • Present subjunctive: comienc for ‘yo’, ‘tú’, ‘él’, ‘ella’, ‘ustedes’ comenc for ‘nosotros’ and ‘vosotros’. 
    • Affirmative imperative: comienz for ‘tú’ and comienc for ‘usted’ and ‘ustedes’. 
    • Negative imperative: comienc for all subject pronouns except ‘vosotros’.

    Indicative Conjugations of Comenzar

    Present tense

    The present tense conjugation of comenzar has a stem change from E to IE. However, this change isn’t applied to ‘nosotros’ and ‘vosotros’. In this tense, ‘comenzar’ communicates the moment an action starts in the present. For example: Las clases comienzan a las 8.

    PersonConjugationTranslation
    YoComienzoI begin
    ComienzasYou begin
    Él / Ella
    Usted
    ComienzaHe/She begins
    You (formal) begin
    NosotrosComenzamosWe begin
    VosotrosComenzáisYou begin
    Ellos / Ellas
    Ustedes
    ComienzanThey begin
    You (plural) begin

    Preterite tense

    In the past preterite, comenzar is a verb with consonant changes for the pronoun yo. With this pronoun, we must replace the ‘z’ for a ‘c’. Use comenzar preterite conjugations to express that an action started at a specific moment in the past. For instance, comencé a trabajar hace dos años.

    PersonConjugationTranslation
    YoComencéI began
    ComenzasteYou began
    Él / Ella
    Usted
    ComenzóHe/She began
    You (formal) began
    NosotrosComenzamosWe began
    VosotrosComenzasteisYou began
    Ellos / Ellas
    Ustedes
    ComenzaronThey began
    You (plural) began

    Imperfect tense

     In the past indicative imperfect tense, comenzar is a regular verb. Use this tense to point out when a past ongoing event used to start. For example: mis clases comenzaban a las 3.

    PersonConjugationTranslation
    YoComenzabaI began
    I used to begin
    ComenzabasYou began
    You used to begin
    Él / Ella
    Usted
    ComenzabaHe/She began 
    He/She used to begin

    You (formal) began
    You (formal) used to begin
    NosotrosComenzábamosWe began
    We used to begin
    VosotrosComenzabaisYou began
    You used to begin
    Ellos / Ellas
    Ustedes
    ComenzabanThey began
    They used to begin

    You (plural) began
    You (plural) used to begin

    Near future

     Ir (present) + a + infinitive (in this case, ‘comenzar’) is the formula to conjugate the near future. In this tense, ‘comenzar’ communicates that an action is about to start at some point in the immediate future. La película ya va a comenzar.

    PersonConjugationTranslation
    YoVoy a comenzarI’m going to begin
    Vas a comenzarYou’re going to begin
    Él / Ella
    Usted
    Va a comenzarHe/She is going to begin
    You (formal) are going to begin
    NosotrosVamos a comenzarWe’re going to begin
    VosotrosVais a comenzarYou’re going to begin
    Ellos / Ellas
    Ustedes
    Van a comenzarThey’re going to begin
    You (plural) are going to begin

    Future simple tense

    As shown on the conjugation chart below, comenzar is a regular verb in the future tense. In the future simple, you can use ‘comenzar’ to explain that an action or event will begin at some point in the future. Las clases comenzarán en unos días.

    PersonConjugationTranslation
    YoComenzaréI will begin
    ComenzarásYou will begin
    Él / Ella
    Usted
    ComenzaráHe/She will begin
    You (formal) will begin
    NosotrosComenzaremosWe will begin
    VosotrosComenzaréisYou (formal) will begin
    Ellos / Ellas
    Ustedes
    ComenzaránThey will begin
    You (plural) will begin

    Conditional tense

     The conditional conjugations of comenzar express that an event or action would begin if certain circumstances are met. It’s also used to ask someone if they would start doing something. ¿Comenzarías a ver la película conmigo?

    PersonConjugationTranslation
    YoComenzaríaI would begin
    ComenzaríasYou would begin
    Él / Ella
    Usted
    ComenzaríaHe/She would begin
    You (formal) would begin
    NosotrosComenzaríamosWe would begin
    VosotrosComenzaríaisYou would begin
    Ellos / Ellas
    Ustedes
    ComenzaríanThey would begin
    You (plural) would begin

    Present perfect tense

    Haber in the present tense + comenzado (past participle) is the formula of the Spanish present perfect tense. Use these conjugations to talk about the actions someone has or hasn’t started. For example: todavía no he comenzado a limpiar.

    PersonConjugationTranslation
    YoHe comenzadoI have begun
    Has comenzadoYou have begun
    Él / Ella
    Usted
    Ha comenzadoHe/She has begun
    You (formal) have begun
    NosotrosHemos comenzadoWe have begun
    VosotrosHabéis comenzadoYou have begun
    Ellos / Ellas
    Ustedes
    Han comenzadoThey have begun
    You (plural) have begun

    Past perfect

    Comenzar in the past perfect tense communicates that an action or event started before some other reference point in the past. Cuando llegué, ya habían comenzado a abordar. To form the past perfect, use the imperfect form of ‘haber’ and the past participle form of ‘comenzar’.

    PersonConjugationTranslation
    YoHabía comenzadoI had begun
    Habías comenzadoYou had begun
    Él / Ella
    Usted
    Había comenzadoHe/She had begun
    You (formal) had begun
    NosotrosHabíamos comenzadoWe had begun
    VosotrosHabíais comenzadoYou had begun
    Ellos / Ellas
    Ustedes
    Habían comenzadoThey had begun
    You (plural) had begun

    Future perfect

    The future perfect of ‘comenzar’ expresses that something will begin by or before a certain time in the future. For instance: para entonces, ya habré comenzado otro libro.

    PersonConjugationTranslation
    YoHabré comenzadoI will have begun
    Habrás comenzadoYou will have begun
    Él / Ella
    Usted
    Habrá comenzadoHe/She will have begun
    You (formal) will have begun
    NosotrosHabremos comenzadoWe will have begun
    VosotrosHabréis comenzadoYou will have begun
    Ellos / Ellas
    Ustedes
    Habrán comenzadoThey will have begun
    You (plural) will have begun

    Conditional perfect

    The conditional perfect conjugations of comenzar are used to convey that an event would have started as long as a past condition had been met. For example: si hubiera podido, habría comenzado a estudiar español antes.

    PersonConjugationTranslation
    YoHabría comenzadoI would have begun
    Habrías comenzadoYou would have begun
    Él / Ella
    Usted
    Habría comenzadoHe/She would have begun
    You (formal) would have begun
    NosotrosHabríamos comenzadoWe would have begun
    VosotrosHabríais comenzadoYou would have begun
    Ellos / Ellas
    Ustedes
    Habrían comenzadoThey would have begun
    You (plural) would have begun

    Progressive tenses

    The progressive tenses of comenzar express that an action is starting at the moment of speaking. Or, in the case of past forms, to communicate that a past action was in progress when something else happened. Cuando llegué, estaban comenzado a abordar.

    Progressive TenseFormulaTranslation Example
    PresentEstar (present) + comenzandoI am beginning
    PreteriteEstar (preterite) + comenzandoYou were beginning
    ImperfectEstar (imperfect) + comenzandoHe was beginning
    FutureEstar (future) + comenzandoWe will be beginning
    ConditionalEstar (conditional) + comenzandoThey would be beginning

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    Comenzar Subjunctive Conjugations

    In Spanish, the subjunctive is used to talk about wishes, hypothetical situations or express uncertainty. The conjugation charts below show the subjunctive forms of comenzar.

    Present subjunctive

    The subjunctive conjugations of comenzar have an E to IE stem change for all subjects except ‘nosotros’ and ‘vosotros’. Additionally, all conjugations have a consonant change (z to c). In the subjunctive, ‘comenzar’ can be used to request someone to start something. For example: niños quiero que comiencen a guardar sus cosas.

    PersonConjugationTranslation
    YoComienceI begin
    ComiencesYou begin
    Él / Ella
    Usted
    ComienceHe/She begin
    You (formal) begin
    NosotrosComencemosWe begin
    VosotrosComencéisYou begin
    Ellos / Ellas
    Ustedes
    ComiencenThey begin
    You (plural) begin

    Present perfect subjunctive

    Haber in the present subjunctive + comenzado is the formula to build the present perfect subjunctive of ‘comenzar’. When using this tense, ‘comenzar’ conveys doubt about the start of an action. No creo que hayas comenzado hace dos horas.

    PersonConjugationTranslation
    YoHaya comenzadoI have begun
    Hayas comenzadoYou have begun
    Él / Ella
    Usted
    Haya comenzadoHe/She has begun
    You (formal) have begun
    NosotrosHayamos comenzadoWe have begun
    VosotrosHayáis comenzadoYou have begun
    Ellos / Ellas
    Ustedes
    Hayan comenzadoThey have begun
    You (plural) have begun

    Imperfect subjunctive

    You can use the imperfect subjunctive of ‘comenzar’ to talk about past suggestions you made about starting an action. Si comenzaras a trabajar temprano, terminarías más pronto. 

    The imperfect subjunctive has two conjugation models depending on which type of Spanish you’re using:

    Latin American Spanish version

    PersonConjugationTranslation
    YoComenzaraI began
    ComenzarasYou began
    Él / Ella
    Usted
    ComenzaraHe/She began
    You (formal) began
    NosotrosComenzáramosWe began
    Ellos / Ellas
    Ustedes
    ComenzaranThey began
    You (plural) began

    Note: This table doesn’t include the conjugation for vosotros because this pronoun is not used in Latin American Spanish.

    Castilian Spanish version

    PersonConjugationTranslation
    YoComenzaseI began
    ComenzasesYou began
    Él / Ella
    Usted
    ComenzaseHe/She began
    You (formal) began
    NosotrosComenzásemosWe began
    VosotrosComenzaseisYou began
    Ellos / Ellas
    Ustedes
    ComenzasenThey began
    You (plural) began

    Past perfect subjunctive

    In the past perfect subjunctive, comenzar communicates that someone would have started doing something if a past circumstance was met. You can also use these conjugations to express regrets or hypothetical results if someone had begun something. 
    For example: ojalá la película hubiera comenzado más temprano.

    PersonConjugationTranslation
    YoHubiera comenzadoI had begun
    Hubieras comenzadoYou had begun
    Él / Ella
    Usted
    Hubiera comenzadoHe/She had begun
    You (formal) had begun
    NosotrosHubiéramos comenzadoWe had begun
    VosotrosHubierais comenzadoYou had begun
    Ellos / Ellas
    Ustedes
    Hubieran comenzadoThey had begun
    You (plural) had begun

    Comenzar Imperative Conjugations

    The imperative is used to give commands in Spanish. In other words, it’s used to tell people what to do (affirmative imperative) and what not to do (negative imperative).

    Affirmative commands

    The affirmative commands of ‘comenzar’ are used to order someone to start doing something. Comienza con este proyecto, por favor. In the imperative, ‘comenzar’ also has E to IE changes, which do not affect ‘vosotros’.

    PersonConjugationTranslation
    ComienzaBegin
    UstedComienceBegin
    VosotrosComenzadBegin
    UstedesComiencenBegin

    Negative commands

    The negative imperative is used to order someone to not start an action. For example: no comiences la película sin mí.

    PersonConjugationTranslation
    No comiencesDon’t begin
    UstedNo comienceDon’t begin
    VosotrosNo comencéisDon’t begin
    UstedesNo comiencenDon’t begin

    Meanings of Comenzar & Examples

    Now that you’ve learned how to conjugate comenzar, you should check these examples to see how to apply this verb correctly. 

    Comenzar is the direct translation of ‘to begin’ or ‘to start’. As a result, it’s used to talk about the start or beginning of something. 

    [Comenzar conjugated] + [complement]

    La película comenzó hace 10 minutos. 
    The movie started 10 minutes ago. 

    Todavía no hemos comenzado a comer. 
    We haven’t begun to eat. 

    Espero que el concierto comience pronto. 
    I hope the concert begins soon. 

    Take Note: Comenzar + a + infinitive verb expresses that someone starts doing something. 

    Download Comenzar Conjugation Tables & Uses Cheat sheets

    I’ve created a PDF for you to download containing all of the conjugation tables, verb characteristics, and uses so you can study it at your own pace!

    Practice Quiz: Comenzar Conjugation

    Now that you’ve learned how to conjugate comenzar, take the comenzar conjugation practice quiz to test your knowledge on the various tenses with stem-changes.

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    Daniela Sanchez

    Native Spanish Teacher · Mexico · 10+ years experience

    Daniela is the founder of Tell Me In Spanish and a native Spanish speaker from Mexico. She's been teaching Spanish online since 2014 and has helped over 26,000 learners build real fluency. Her approach focuses on the patterns and vocabulary that actually matter in everyday conversation.

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