Ella VerbsHow to conjugate Basar in Spanish
basar to base Regular AR Verb
At a glance: Basar (to base) is a regular -AR verb in Spanish. In the present tense: baso, basas, basa, basamos, basáis, basan. Because it is fully regular, its endings apply directly to hundreds of other -AR verbs.
- Past participle
- basado based
- Gerund
- basando basing
Table of contents
- Indicative tenses of Basar
- Basar in the Indicative Present
- Basar in the Indicative Preterite
- Basar in the Indicative Imperfect
- Basar in the Indicative Present Continuous
- Basar in the Indicative Informal Future
- Basar in the Indicative Future
- Basar in the Indicative Conditional
- Basar in the Indicative Present Perfect
- Basar in the Indicative Past Perfect
- Basar in the Indicative Future Perfect
- Basar in the Indicative Conditional Perfect
- Subjunctive tenses of Basar
- Imperative tenses of Basar
- Verbs that follow the same patterns
- Frequently asked questions
- Downloadable cheat sheet (PDF)
- Practise Basar conjugations (free mobile app)
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Indicative tenses of Basar
Basar in the Indicative Present
The Indicative Present of basar 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, “baso”, meaning “I base”.
In Spanish, the Indicative Present is known as "El Presente".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | baso | I base |
| Tú | basas | you base |
| Ella / Él / Usted | basa | s/he bases |
| Nosotras / Nosotros | basamos | we base |
| Vosotras / Vosotros | basáis | you (plural) base |
| Ellas / Ellos / Ustedes | basan | they base |
How it’s built: Regular: stem bas- plus the -ar endings.
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Basar in the Indicative Preterite
The Indicative Preterite of basar is used to talk about actions completed in the past, at a specific point in time. For example, “basé”, meaning “I based”.
In Spanish, the Indicative Preterite is known as "El Pretérito Indefinido".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | basé | I based |
| Tú | basaste | you based |
| Ella / Él / Usted | basó | s/he based |
| Nosotras / Nosotros | basamos | we based |
| Vosotras / Vosotros | basasteis | you (plural) based |
| Ellas / Ellos / Ustedes | basaron | they based |
How it’s built: Regular: stem bas- plus the -ar endings.
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Basar in the Indicative Imperfect
The Indicative Imperfect of basar is used to describe regular and repeated actions that happened in the past and descriptions of things you used to do. For example, “basaba”, meaning “I used to base”.
In Spanish, the Indicative Imperfect is known as "El Pretérito Imperfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | basaba | I used to base |
| Tú | basabas | you used to base |
| Ella / Él / Usted | basaba | s/he used to base |
| Nosotras / Nosotros | basábamos | we used to base |
| Vosotras / Vosotros | basabais | you (plural) used to base |
| Ellas / Ellos / Ustedes | basaban | they used to base |
How it’s built: Regular: stem bas- plus the -ar endings.
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Basar in the Indicative Present Continuous
The Indicative Present Continuous of basar is used to talk about something that is happening continuously or right now. For example, “estoy basando”, meaning “I am basing”.
In Spanish, the Indicative Present Continuous is known as "El Presente Progresivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | estoy basando | I am basing |
| Tú | estás basando | you are basing |
| Ella / Él / Usted | está basando | s/he is basing |
| Nosotras / Nosotros | estamos basando | we are basing |
| Vosotras / Vosotros | estáis basando | you (plural) are basing |
| Ellas / Ellos / Ustedes | están basando | they are basing |
How it’s built: Estar in the present (estoy, estás, está, estamos, estáis, están) plus the gerund basando.
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Basar in the Indicative Informal Future
The Indicative Informal Future of basar is used to talk about something that will happen in the future, especially in the near future. For example, “voy a basar”, meaning “I am going to base”.
In Spanish, the Indicative Informal Future is known as "El Futuro Próximo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | voy a basar | I am going to base |
| Tú | vas a basar | you are going to base |
| Ella / Él / Usted | va a basar | s/he is going to base |
| Nosotras / Nosotros | vamos a basar | we are going to base |
| Vosotras / Vosotros | vais a basar | you (plural) are going to base |
| Ellas / Ellos / Ustedes | van a basar | they are going to base |
How it’s built: Ir in the present (voy, vas, va, vamos, vais, van), then a, then the infinitive basar.
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Basar in the Indicative Future
The Indicative Future of basar is used to talk about something that will happen in the future. For example, “basaré”, meaning “I will base”.
In Spanish, the Indicative Future is known as "El Futuro Simple".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | basaré | I will base |
| Tú | basarás | you will base |
| Ella / Él / Usted | basará | s/he will base |
| Nosotras / Nosotros | basaremos | we will base |
| Vosotras / Vosotros | basaréis | you (plural) will base |
| Ellas / Ellos / Ustedes | basarán | they will base |
How it’s built: Regular: the infinitive basar plus the future endings.
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Basar in the Indicative Conditional
The Indicative Conditional of basar is used to talk about something that may happen in the future, hypothesis and probabilities. For example, “basaría”, meaning “I would base”.
In Spanish, the Indicative Conditional is known as "El Condicional Simple".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | basaría | I would base |
| Tú | basarías | you would base |
| Ella / Él / Usted | basaría | s/he would base |
| Nosotras / Nosotros | basaríamos | we would base |
| Vosotras / Vosotros | basaríais | you (plural) would base |
| Ellas / Ellos / Ustedes | basarían | they would base |
How it’s built: Regular: the infinitive basar plus the conditional endings.
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Basar in the Indicative Present Perfect
The Indicative Present Perfect of basar 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 basado”, meaning “I have based”.
In Spanish, the Indicative Present Perfect is known as "El Pretérito Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | he basado | I have based |
| Tú | has basado | you have based |
| Ella / Él / Usted | ha basado | s/he has based |
| Nosotras / Nosotros | hemos basado | we have based |
| Vosotras / Vosotros | habéis basado | you (plural) have based |
| Ellas / Ellos / Ustedes | han basado | they have based |
How it’s built: Haber in the present (he, has, ha, hemos, habéis, han) plus the past participle basado.
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Basar in the Indicative Past Perfect
The Indicative Past Perfect of basar is used to talk about actions that happened before another action in the past. For example, “había basado”, meaning “I had based”.
In Spanish, the Indicative Past Perfect is known as "El Pretérito Pluscuamperfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | había basado | I had based |
| Tú | habías basado | you had based |
| Ella / Él / Usted | había basado | s/he had based |
| Nosotras / Nosotros | habíamos basado | we had based |
| Vosotras / Vosotros | habíais basado | you (plural) had based |
| Ellas / Ellos / Ustedes | habían basado | they had based |
How it’s built: Haber in the imperfect (había, habías, había, habíamos, habíais, habían) plus the past participle basado.
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Basar in the Indicative Future Perfect
The Indicative Future Perfect of basar is used to talk about something that will have happened in the future after something else has already happened. For example, “habré basado”, meaning “I will have based”.
In Spanish, the Indicative Future Perfect is known as "El Futuro Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | habré basado | I will have based |
| Tú | habrás basado | you will have based |
| Ella / Él / Usted | habrá basado | s/he will have based |
| Nosotras / Nosotros | habremos basado | we will have based |
| Vosotras / Vosotros | habréis basado | you (plural) will have based |
| Ellas / Ellos / Ustedes | habrán basado | they will have based |
How it’s built: Haber in the future (habré, habrás, habrá, habremos, habréis, habrán) plus the past participle basado.
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Basar in the Indicative Conditional Perfect
The Indicative Conditional Perfect of basar is used to talk about something that would have happened in the past but didn’t due to another action. For example, “habría basado”, meaning “I would have based”.
In Spanish, the Indicative Conditional Perfect is known as "El Condicional Perfecto".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | habría basado | I would have based |
| Tú | habrías basado | you would have based |
| Ella / Él / Usted | habría basado | s/he would have based |
| Nosotras / Nosotros | habríamos basado | we would have based |
| Vosotras / Vosotros | habríais basado | you (plural) would have based |
| Ellas / Ellos / Ustedes | habrían basado | they would have based |
How it’s built: Haber in the conditional (habría, habrías, habría, habríamos, habríais, habrían) plus the past participle basado.
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Subjunctive tenses of Basar
Basar 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, “base”, meaning “I base”.
In Spanish, the Subjunctive Present is known as "El Presente de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | base | I base |
| Tú | bases | you base |
| Ella / Él / Usted | base | s/he bases |
| Nosotras / Nosotros | basemos | we base |
| Vosotras / Vosotros | baséis | you (plural) base |
| Ellas / Ellos / Ustedes | basen | they base |
How it’s built: Regular: stem bas- plus the -ar subjunctive endings.
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Basar 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, “basara”, meaning “I based”.
In Spanish, the Subjunctive Imperfect is known as "El Imperfecto Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | basara | I based |
| Tú | basaras | you based |
| Ella / Él / Usted | basara | s/he based |
| Nosotras / Nosotros | basáramos | we based |
| Vosotras / Vosotros | basarais | you (plural) based |
| Ellas / Ellos / Ustedes | basaran | they based |
How it’s built: Regular: the ellas/ellos preterite, basaron, without -ron, plus the -ra endings; nosotros adds an accent (basáramos).
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Basar 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, “basare”, meaning “I will base”.
In Spanish, the Subjunctive Future is known as "El Futuro de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | basare | I will base |
| Tú | basares | you will base |
| Ella / Él / Usted | basare | s/he will base |
| Nosotras / Nosotros | basáremos | we will base |
| Vosotras / Vosotros | basareis | you (plural) will base |
| Ellas / Ellos / Ustedes | basaren | they will base |
How it’s built: Regular: the ellas/ellos preterite, basaron, without -ron, plus the -re endings; nosotros adds an accent (basáremos).
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Basar 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 basado”, meaning “I have based”.
In Spanish, the Subjunctive Present Perfect is known as "El Pretérito Perfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | haya basado | I have based |
| Tú | hayas basado | you have based |
| Ella / Él / Usted | haya basado | s/he has based |
| Nosotras / Nosotros | hayamos basado | we have based |
| Vosotras / Vosotros | hayáis basado | you (plural) have based |
| Ellas / Ellos / Ustedes | hayan basado | they have based |
How it’s built: Haber in the subjunctive present (haya, hayas, haya, hayamos, hayáis, hayan) plus the past participle basado.
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Basar 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 basado”, meaning “I had based”.
In Spanish, the Subjunctive Past Perfect is known as "El Pretérito Pluscuamperfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | hubiera basado | I had based |
| Tú | hubieras basado | you had based |
| Ella / Él / Usted | hubiera basado | s/he had based |
| Nosotras / Nosotros | hubiéramos basado | we had based |
| Vosotras / Vosotros | hubierais basado | you (plural) had based |
| Ellas / Ellos / Ustedes | hubieran basado | they had based |
How it’s built: Haber in the subjunctive imperfect (hubiera, hubieras, hubiera, hubiéramos, hubierais, hubieran) plus the past participle basado.
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Basar 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 basado”, meaning “I will have based”.
In Spanish, the Subjunctive Future Perfect is known as "El Futuro Perfecto de Subjuntivo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | hubiere basado | I will have based |
| Tú | hubieres basado | you will have based |
| Ella / Él / Usted | hubiere basado | s/he will have based |
| Nosotras / Nosotros | hubiéremos basado | we will have based |
| Vosotras / Vosotros | hubiereis basado | you (plural) will have based |
| Ellas / Ellos / Ustedes | hubieren basado | they will have based |
How it’s built: Haber in the subjunctive future (hubiere, hubieres, hubiere, hubiéremos, hubiereis, hubieren) plus the past participle basado.
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Imperative tenses of Basar
Basar in the Imperative Affirmative
The Imperative Affirmative is used to give orders and commands, to tell someone to do something. For example, “base”, meaning “(to you formal) base!”.
In Spanish, the Imperative Affirmative is known as "El Imperativo Afirmativo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | - | - |
| Tú | basa | (to you) base! |
| Ella / Él / Usted | base | (to you formal) base! |
| Nosotras / Nosotros | basemos | let's base! |
| Vosotras / Vosotros | basad | (to you plural) base! |
| Ellas / Ellos / Ustedes | basen | (to you plural formal) base! |
How it’s built: Tú takes the ella/él present (basa); usted, nosotros and ustedes take the subjunctive present (base, basemos, basen); vosotros swaps the final r of the infinitive for a d (basad).
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Basar in the Imperative Negative
The Imperative Negative is used to give orders and commands, telling someone not to do something. For example, “no base”, meaning “(to you formal) don't base!”.
In Spanish, the Imperative Negative is known as "El Imperativo Negativo".
| Pronoun | Spanish | English |
|---|---|---|
| Yo | - | - |
| Tú | no bases | (to you) don't base! |
| Ella / Él / Usted | no base | (to you formal) don't base! |
| Nosotras / Nosotros | no basemos | let's not base! |
| Vosotras / Vosotros | no baséis | (to you plural) don't base! |
| Ellas / Ellos / Ustedes | no basen | (to you plural formal) don't base! |
How it’s built: No plus the subjunctive present: no bases, no base, no basemos, no baséis, no basen.
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Frequently asked questions about Basar
Is basar a regular or irregular verb?
Basar 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 basar in the present tense (presente)?
In the present tense (presente), basar is conjugated as: yo baso, tú basas, él/ella/usted basa, nosotros basamos, vosotros basáis, ellos/ellas/ustedes basan. 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 basar in the preterite (pretérito indefinido)?
In the preterite (pretérito indefinido), basar is conjugated as: yo basé, tú basaste, él/ella/usted basó, nosotros basamos, vosotros basasteis, ellos/ellas/ustedes basaron. The preterite is used To talk about actions completed in the past, at a specific point in time.
How do you conjugate basar in the imperfect (pretérito imperfecto)?
In the imperfect (pretérito imperfecto), basar is conjugated as: yo basaba, tú basabas, él/ella/usted basaba, nosotros basábamos, vosotros basabais, ellos/ellas/ustedes basaban. 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 basar in the future tense (futuro simple)?
In the future tense (futuro simple), basar is conjugated as: yo basaré, tú basarás, él/ella/usted basará, nosotros basaremos, vosotros basaréis, ellos/ellas/ustedes basarán. The future tense is used To talk about something that will happen in the future.
How do you conjugate basar in the present subjunctive (subjuntivo presente)?
In the present subjunctive (subjuntivo presente), basar is conjugated as: yo base, tú bases, él/ella/usted base, nosotros basemos, vosotros baséis, ellos/ellas/ustedes basen. 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.
What is the difference between basar and basarse?
Basar means "to base" in the standard sense. Basarse is the reflexive form, which typically means the action is done to oneself or to each other. The reflexive pronoun (me, te, se, nos, os, se) is added before the conjugated verb. For example, "no se basan" instead of "no basan".
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Downloadable cheat sheets
Download and print a cheat sheet of Basar Spanish conjugation tables in image or PDF format:
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Practise Basar conjugations (free mobile & web app)
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Want to explore other verb conjugations?
Why not check out Bañarse – to bathe (oneself), to wash (oneself) or see the complete list of verbs here.
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