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Interesarse is a Spanish verb which translates into English as “to be interested in, be concerned”.
It’s a reflexive verb, which means the subject performs the action upon themselves – e.g. “I wake myself”.
Reflexive verbs always carry a reflexive pronoun – me, te, se, nos or os – which is often placed before the conjugated verb (e.g. me intereso) or after the infinitive (e.g. Él tiene que interesarse).
Below are all of the conjugations for interesarse in Spanish, in all three moods (indicative/indicativo, subjunctive/subjunctivo and imperative/imperativo) and all of the tenses, for each pronoun.
The vosotros pronoun is mainly used in mainland Spain, and is the informal second-person plural – it could be considered the Spanish version of “y’all”. It is rarely found in Latin America, where ustedes is used instead.
The vos form is used instead of tú in some Spanish speaking countries of South America, especially the Southern Cone (e.g. Argentina and Uruguay) and has a different conjugation.
| English Infinitive | to be interested in, be concerned |
|---|---|
| Spanish Infinitive | interesarse |
The gerund (gerundio) is used with the continuous tenses, e.g. present continuous (está interesándose) and past continuous (estaba interesándose). The easiest way to think of it is the equivalent of english’s -ing form (e.g. being interested in).
The past participle (participio) is used with perfect tense ‘haber’ verbs, e.g. he interesado and hubiera interesado. These are the equivalent of English’s ‘have’ (e.g. have been interested in).
| Gerundio / Gerund | interesándose |
|---|---|
| Participio / Past Participle | interesado |
The basic form of speech, el indicativo is used for making statements, talking about facts, events and things that are certain and objective.
The present tense is as it sounds – it’s for talking about things that are currently going on, which are habitual, or which generally exist. In English, this would be “I am interested in” or “they am interested in”.
| Pronoun | Spanish |
|---|---|
| Yo | me intereso |
| Tú | te interesas |
| Él / Ella / Usted | se interesa |
| Nosotros / as | nos interesamos |
| Vosotros / as | os interesáis |
| Ellos / Ellas / Ustedes | se interesan |
| Vos | interesás |
Your simple past tense, e.g. “I was interested in” or “she was interested in” in English.
In Spanish, there are two past tenses where just one is used in English; the pretérite infefinido is typically used to refer to a concrete, specific moment in time.
| Pronoun | Spanish | English |
|---|---|---|
| Yo | me interesé | I was interested in |
| Tú | te interesaste | You was interested in |
| Él / Ella / Usted | se interesó | He / she / you was interested in |
| Nosotros / as | nos interesamos | We was interested in |
| Vosotros / as | os interesasteis | You was interested in |
| Ellos / Ellas / Ustedes | se interesaron | They / you was interested in |
| Vos | te interesaste | You was interested in |
The pretérito imperfecto roughly translates as “I was being interested in” or “she was being interested in” in English, and is typically used to describe things and set a scene, talk about events without a specific timeframe, or talk about habitual events or states in the past.
| Pronoun | Spanish | English |
|---|---|---|
| Yo | me interesaba | I was being interested in |
| Tú | te interesabas | You were being interested in |
| Él / Ella / Usted | se interesaba | He was / she was / you were being interested in |
| Nosotros / as | nos interesábamos | We were being interested in |
| Vosotros / as | os interesabais | You were being interested in |
| Ellos / Ellas / Ustedes | se interesaban | They / you were being interested in |
| Vos | te interesabas | You were being interested in |
The perfect tense is for talking about things which happened in the past but are still related to the present or continue into the present.
In English, these use the auxiliary verbs ‘have’ and ‘has’ – i.e. “I have been interested in” and “she has been interested in”.
| Pronoun | Spanish | English |
|---|---|---|
| Yo | me he interesado | I have been interested in |
| Tú | te has interesado | You have been interested in |
| Él / Ella / Usted | se ha interesado | He has / she has / you have been interested in |
| Nosotros / as | nos hemos interesado | We have been interested in |
| Vosotros / as | os habéis interesado | You have been interested in |
| Ellos / Ellas / Ustedes | se han interesado | They / you have been interested in |
| Vos | te has interesado | You have been interested in |
The conditional is used in place of the English modal verb “would”, i.e. “I would be interested in” or “she would be interested in”. It can be used to talk about hypothetical situations.
| Pronoun | Spanish | Englush |
|---|---|---|
| Yo | me interesaría | I would am interested in |
| Tú | te interesarías | You would am interested in |
| Él / Ella / Usted | se interesaría | He / she / you would am interested in |
| Nosotros / as | nos interesaríamos | We would am interested in |
| Vosotros / as | os interesaríais | You would am interested in |
| Ellos / Ellas / Ustedes | se interesarían | They / you would am interested in |
| Vos | te interesarías | You would am interested in |
The future tense, simply put, replaces the English modal verb “will” – i.e. “I will be interested in” or “they will be interested in”.
It is more commonly used for making a hypothesis about the present. To talk about the future, Spanish speakers frequently use “ir + a + infinivo”, e.g. “van a interesarse” means “They are going to be interested in”.
| Pronoun | Spanish | English |
|---|---|---|
| Yo | me interesaré | I will am interested in |
| Tú | te interesarás | You will am interested in |
| Él / Ella / Usted | se interesará | He / she / you will am interested in |
| Nosotros / as | nos interesaremos | We will am interested in |
| Vosotros / as | os interesaréis | You will am interested in |
| Ellos / Ellas / Ustedes | se interesarán | They / you will am interested in |
| Vos | te interesarás | You will am interested in |
| Pronoun | Spanish |
|---|---|
| Yo | me interese |
| Tú | te intereses |
| Él / Ella / Usted | se interese |
| Nosotros / as | nos interesemos |
| Vosotros / as | os intereséis |
| Ellos / Ellas / Ustedes | se interesen |
| Vos | te intereses |
There are two ways to form the imperfect subjunctive.
The first option sees verbs ending in -era (for -er and -ir verbs) and -ara (for -ar verbs), while the second sees verbs ending in -ese (for -er and -ir verbs) and -ase (for -ar verbs).
There is no difference between these two forms, and Spanish speakers use them interchangeably.
| Pronoun | Spanish era/ara | Spanish ese/ase |
|---|---|---|
| Yo | me interesara | me interesase |
| Tú | te interesaras | me interesase |
| Él / Ella / Usted | se interesara | se interesase |
| Nosotros / as | nos interesáramos | nos interesásemos |
| Vosotros / as | os interesarais | os interesaseis |
| Ellos / Ellas / Ustedes | se interesaran | se interesasen |
| Vos | te interesaras | me interesase |
The future subjunctive is no longer used in modern-day Spanish, apart from in literary and legal contexts, and there is no need to learn it.
It is formed the same as the past/imperfect subjunctive, but with -e endings instead of -a endings.
| Pronoun | Spanish |
|---|---|
| Yo | me interesare |
| Tú | te interesares |
| Él / Ella / Usted | se interesare |
| Nosotros / as | nos interesáremos |
| Vosotros / as | os interesareis |
| Ellos / Ellas / Ustedes | se interesaren |
| Vos | te interesares |
Used for forming positive and negative commands, e.g. “be interested in!” and “don’t be interested in!”.
| Pronoun | Spanish Affirmative | Spanish Negative |
|---|---|---|
| Tú | interésate | no te intereses |
| Él / Ella / Usted | interésese | no se interese |
| Nosotros / as | interesémonos | no nos interesemos |
| Vosotros / as | interesaos | no os intereséis |
| Ellos / Ellas / Ustedes | interésense | no se interesen |
| Vos | interesá | no te intereses |
| Pronoun | Spanish |
|---|---|
| Yo | haya interesado |
| Tú | hayas interesado |
| Él / Ella / Usted | haya interesado |
| Nosotros / as | hayamos interesado |
| Vosotros / as | hayáis interesado |
| Ellos / Ellas / Ustedes | hayan interesado |
| Vos | hayas interesado |
| Pronoun | Spanish |
|---|---|
| Yo | hubiera interesado / hubiese interesado |
| Tú | hubieras interesado / hubieses interesado |
| Él / Ella / Usted | hubiera interesado / hubiese interesado |
| Nosotros / as | hubiéramos interesado / hubiésemos interesado |
| Vosotros / as | hubierais interesado / hubieseis interesado |
| Ellos / Ellas / Ustedes | hubieran interesado / hubiesen interesado |
| Vos | hubieras interesado / hubieses interesado |
| Pronoun | Spanish |
|---|---|
| Yo | hubiere interesado |
| Tú | hubieres interesado |
| Él / Ella / Usted | hubiere interesado |
| Nosotros / as | hubiéremos interesado |
| Vosotros / as | hubiereis interesado |
| Ellos / Ellas / Ustedes | hubieren interesado |
| Vos | hubieres interesado |
| Pronoun | Spanish |
|---|---|
| Yo | esté interesándose |
| Tú | estés interesándose |
| Él / Ella / Usted | esté interesándose |
| Nosotros / as | estemos interesándose |
| Vosotros / as | estéis interesándose |
| Ellos / Ellas / Ustedes | estén interesándose |
| Vos | estés interesándose |
| Pronoun | Spanish |
|---|---|
| Yo | estuviera interesándose / estuviese interesándose |
| Tú | estuvieras interesándose / estuvieses interesándose |
| Él / Ella / Usted | estuviera interesándose / estuviese interesándose |
| Nosotros / as | estuviéramos interesándose / estuviésamos interesándose |
| Vosotros / as | estuvierais interesándose / estuvieseis interesándose |
| Ellos / Ellas / Ustedes | estuviera interesándose / estuviese interesándose |
| Vos | estuvieras interesándose / estuvieses interesándose |
| Pronoun | Spanish |
|---|---|
| Yo | estuviere interesándose |
| Tú | estuvieres interesándose |
| Él / Ella / Usted | estuviere interesándose |
| Nosotros / as | estuviéremos interesándose |
| Vosotros / as | estuviereis interesándose |
| Ellos / Ellas / Ustedes | estuviere interesándose |
| Vos | estuvieres interesándose |
Voseo is the practice of using ‘vos’ instead of ‘tú’ as the second-person singular pronoun, and is common throughout much of South America.
There are various versions of ‘voseo’ used throughout the Spanish-speaking world. The conjugations for the most common type – used throughout Argentina, parts of Bolivia, Colombia, Ecuador, Paraguya and Uruguay are below.
The present indicative (presente de indicativo) and affirmative imperative (imperativo) have different conjugations from the tú form, while all other tenses generally use the tú form.
| Tense | Vos Conjugation |
|---|---|
| Present Indicative Presente de Indicativo | Vos interesás |
| Simle Past / Preterite Preterite de Indicativo | Vos te interesaste |
| Imperfect Past Preterite Imperfecto de Indicativo | Vos te interesabas |
| Conditional Condicional | Vos te interesarías |
| Future Futuro de Indicativo | Vos te interesarás |
| Present Subjunctive Presente de Subjunctivo | Vos te intereses |
| Imperfect Subjunctive Imperfecto de Subjunctivo | Vos te interesaras / Vos me interesase |
| Affirmative Imperative Imperativo | Vos interesá |
| Negative Imperative Imperativo Negativo | Vos no te intereses |