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Aseverar is a Spanish verb which translates into English as “to assert”.
Below are all of the conjugations for aseverar 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 assert |
|---|---|
| Spanish Infinitive | aseverar |
The gerund (gerundio) is used with the continuous tenses, e.g. present continuous (está aseverando) and past continuous (estaba aseverando). The easiest way to think of it is the equivalent of english’s -ing form (e.g. asserting).
The past participle (participio) is used with perfect tense ‘haber’ verbs, e.g. he aseverado and hubiera aseverado. These are the equivalent of English’s ‘have’ (e.g. have asserted).
| Gerundio / Gerund | aseverando |
|---|---|
| Participio / Past Participle | aseverado |
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 assert” or “they assert”.
| Pronoun | Spanish |
|---|---|
| Yo | asevero |
| Tú | aseveras |
| Él / Ella / Usted | asevera |
| Nosotros / as | aseveramos |
| Vosotros / as | aseveráis |
| Ellos / Ellas / Ustedes | aseveran |
| Vos | aseverás |
Your simple past tense, e.g. “I asserted” or “she asserted” 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 | aseveré | I asserted |
| Tú | aseveraste | You asserted |
| Él / Ella / Usted | aseveró | He / she / you asserted |
| Nosotros / as | aseveramos | We asserted |
| Vosotros / as | aseverasteis | You asserted |
| Ellos / Ellas / Ustedes | aseveraron | They / you asserted |
| Vos | aseveraste | You asserted |
The pretérito imperfecto roughly translates as “I was asserting” or “she was asserting” 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 | aseveraba | I was asserting |
| Tú | aseverabas | You were asserting |
| Él / Ella / Usted | aseveraba | He was / she was / you were asserting |
| Nosotros / as | aseverábamos | We were asserting |
| Vosotros / as | aseverabais | You were asserting |
| Ellos / Ellas / Ustedes | aseveraban | They / you were asserting |
| Vos | aseverabas | You were asserting |
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 asserted” and “she has asserted”.
| Pronoun | Spanish | English |
|---|---|---|
| Yo | he aseverado | I have asserted |
| Tú | has aseverado | You have asserted |
| Él / Ella / Usted | ha aseverado | He has / she has / you have asserted |
| Nosotros / as | hemos aseverado | We have asserted |
| Vosotros / as | habéis aseverado | You have asserted |
| Ellos / Ellas / Ustedes | han aseverado | They / you have asserted |
| Vos | has aseverado | You have asserted |
The conditional is used in place of the English modal verb “would”, i.e. “I would assert” or “she would assert”. It can be used to talk about hypothetical situations.
| Pronoun | Spanish | Englush |
|---|---|---|
| Yo | aseveraría | I would assert |
| Tú | aseverarías | You would assert |
| Él / Ella / Usted | aseveraría | He / she / you would assert |
| Nosotros / as | aseveraríamos | We would assert |
| Vosotros / as | aseveraríais | You would assert |
| Ellos / Ellas / Ustedes | aseverarían | They / you would assert |
| Vos | aseverarías | You would assert |
The future tense, simply put, replaces the English modal verb “will” – i.e. “I will assert” or “they will assert”.
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 aseverar” means “They are going to assert”.
| Pronoun | Spanish | English |
|---|---|---|
| Yo | aseveraré | I will assert |
| Tú | aseverarás | You will assert |
| Él / Ella / Usted | aseverará | He / she / you will assert |
| Nosotros / as | aseveraremos | We will assert |
| Vosotros / as | aseveraréis | You will assert |
| Ellos / Ellas / Ustedes | aseverarán | They / you will assert |
| Vos | aseverarás | You will assert |
| Pronoun | Spanish |
|---|---|
| Yo | asevere |
| Tú | aseveres |
| Él / Ella / Usted | asevere |
| Nosotros / as | aseveremos |
| Vosotros / as | aseveréis |
| Ellos / Ellas / Ustedes | aseveren |
| Vos | aseveres |
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 | aseverara | aseverase |
| Tú | aseveraras | aseverase |
| Él / Ella / Usted | aseverara | aseverase |
| Nosotros / as | aseveráramos | aseverásemos |
| Vosotros / as | aseverarais | aseveraseis |
| Ellos / Ellas / Ustedes | aseveraran | aseverasen |
| Vos | aseveraras | aseverase |
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 | aseverare |
| Tú | aseverares |
| Él / Ella / Usted | aseverare |
| Nosotros / as | aseveráremos |
| Vosotros / as | aseverareis |
| Ellos / Ellas / Ustedes | aseveraren |
| Vos | aseverares |
Used for forming positive and negative commands, e.g. “assert!” and “don’t assert!”.
| Pronoun | Spanish Affirmative | Spanish Negative |
|---|---|---|
| Tú | asevera | no aseveres |
| Él / Ella / Usted | asevere | no asevere |
| Nosotros / as | aseveremos | no aseveremos |
| Vosotros / as | aseverad | no aseveréis |
| Ellos / Ellas / Ustedes | aseveren | no aseveren |
| Vos | aseverá | no aseveres |
| Pronoun | Spanish |
|---|---|
| Yo | haya aseverado |
| Tú | hayas aseverado |
| Él / Ella / Usted | haya aseverado |
| Nosotros / as | hayamos aseverado |
| Vosotros / as | hayáis aseverado |
| Ellos / Ellas / Ustedes | hayan aseverado |
| Vos | hayas aseverado |
| Pronoun | Spanish |
|---|---|
| Yo | hubiera aseverado / hubiese aseverado |
| Tú | hubieras aseverado / hubieses aseverado |
| Él / Ella / Usted | hubiera aseverado / hubiese aseverado |
| Nosotros / as | hubiéramos aseverado / hubiésemos aseverado |
| Vosotros / as | hubierais aseverado / hubieseis aseverado |
| Ellos / Ellas / Ustedes | hubieran aseverado / hubiesen aseverado |
| Vos | hubieras aseverado / hubieses aseverado |
| Pronoun | Spanish |
|---|---|
| Yo | hubiere aseverado |
| Tú | hubieres aseverado |
| Él / Ella / Usted | hubiere aseverado |
| Nosotros / as | hubiéremos aseverado |
| Vosotros / as | hubiereis aseverado |
| Ellos / Ellas / Ustedes | hubieren aseverado |
| Vos | hubieres aseverado |
| Pronoun | Spanish |
|---|---|
| Yo | esté aseverando |
| Tú | estés aseverando |
| Él / Ella / Usted | esté aseverando |
| Nosotros / as | estemos aseverando |
| Vosotros / as | estéis aseverando |
| Ellos / Ellas / Ustedes | estén aseverando |
| Vos | estés aseverando |
| Pronoun | Spanish |
|---|---|
| Yo | estuviera aseverando / estuviese aseverando |
| Tú | estuvieras aseverando / estuvieses aseverando |
| Él / Ella / Usted | estuviera aseverando / estuviese aseverando |
| Nosotros / as | estuviéramos aseverando / estuviésamos aseverando |
| Vosotros / as | estuvierais aseverando / estuvieseis aseverando |
| Ellos / Ellas / Ustedes | estuviera aseverando / estuviese aseverando |
| Vos | estuvieras aseverando / estuvieses aseverando |
| Pronoun | Spanish |
|---|---|
| Yo | estuviere aseverando |
| Tú | estuvieres aseverando |
| Él / Ella / Usted | estuviere aseverando |
| Nosotros / as | estuviéremos aseverando |
| Vosotros / as | estuviereis aseverando |
| Ellos / Ellas / Ustedes | estuviere aseverando |
| Vos | estuvieres aseverando |
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 aseverás |
| Simle Past / Preterite Preterite de Indicativo | Vos aseveraste |
| Imperfect Past Preterite Imperfecto de Indicativo | Vos aseverabas |
| Conditional Condicional | Vos aseverarías |
| Future Futuro de Indicativo | Vos aseverarás |
| Present Subjunctive Presente de Subjunctivo | Vos aseveres |
| Imperfect Subjunctive Imperfecto de Subjunctivo | Vos aseveraras / Vos aseverase |
| Affirmative Imperative Imperativo | Vos aseverá |
| Negative Imperative Imperativo Negativo | Vos no aseveres |