Unirse Present Tense Conjugation in Spanish
The present tense of unirse — “to join” in English — is the form you need for what happens now, for habits and for general truths. This page gives you the full present conjugation table for unirse with all six persons, explains exactly how the tense is formed for this verb, shows when to use it with real examples, and finishes with a quiz so you can test yourself. Unirse means to join, and it is the reflexive partner of unir: you yourself join a group, a club or a cause. It takes a for the group: unirse al equipo, unirse a la protesta. It is a common verb for clubs, teams and movements. To see it in a real sentence: Me uno al equipo de fútbol. — “I join the football team.”
Present tense conjugation table: unirse
Every person of unirse in the present tense. The gerund is uniendo and the past participle is unido.
| Person | Pronoun | Form |
|---|---|---|
| yo | me | uno |
| tú | te | unes |
| él/ella/Ud. | se | une |
| nosotros/as | nos | unimos |
| vosotros/as | os | unís |
| ellos/ellas/Uds. | se | unen |
The gerund is uniendo, which you use with estar to say what is happening right now: “Estoy uniendo” means the action of unirse is in progress at this very moment. The past participle is unido, which you use with haber in the perfect tenses: “he unido” is the present perfect, used for a completed action. Keep both forms in mind as you read the examples below, because the present is only one part of how unirse is used.
How the present of unirse is formed
The present of unirse is built from the stem un plus the present endings for -ir verbs. Take the infinitive, drop the -ir ending, and add the ending that matches the person. The table below shows the endings, and the full table above shows them attached to the stem.
| Person | Ending | Form |
|---|---|---|
| yo | -o | me uno |
| tú | -es | te unes |
| él/ella/Ud. | -e | se une |
| nosotros/as | -imos | nos unimos |
| vosotros/as | -ís | os unís |
| ellos/ellas/Uds. | -en | se unen |
unirse is a regular -ir verb in the present, so the table above is completely regular. The stem is un and the endings are the normal -ir endings, so there are no surprises to memorise in this tense — the challenge is only using the forms naturally.
The gerund of unirse is uniendo and the past participle is unido. Both are the forms you need for the progressive and the perfect tenses with haber.
When to use the present of unirse
The present is not a single-purpose tense. Below are the five situations where you will use unirse in the present most often. Each one comes with a real example, so read the rule, then say the example out loud.
1. A routine or habit
The present tense of unirse is the tense for what happens regularly. When something is part of your routine, your week or your normal life, the present is the right choice, and unirse is no exception. The time words that go with it are todos los días, cada semana, siempre and a menudo.
Example: “Me uno al equipo de fútbol.” — I join the football team.
2. A general fact
The present tense also states facts that are true in general, not just today. When you describe what unirse means in the world — what it does, who it affects, how it works — the present is the tense to use. There is no time limit on the statement, so no past or future form is needed.
Example: “Se une a la protesta del barrio.” — He/she joins the neighbourhood protest.
3. Something happening right now
The present tense describes what is happening at this very moment. You do not need the progressive (estar plus the gerund) to say what is going on now: the simple present does the job in Spanish, and it is the more common choice in everyday speech.
Example: “Me uno al club de lectura.” — I join the reading club.
4. A plan or arrangement
Spanish uses the present tense for plans that are already fixed, especially with a time expression such as mañana or el lunes. When the arrangement is made, the present tense states it as a fact, and unirse follows the same rule as every other verb.
Example: “Mañana, nosotros nos unimos a nosotros en la fiesta.” — Tomorrow, we join us at the party.
5. Asking and answering questions
Questions in the present tense ask about routines, facts and what is happening now. The answer uses the same tense, so a question and its answer stay in the present together. This is the pattern you will hear most often in conversation.
Example: “¿Te unes a la protesta del barrio?” — Do you join the neighbourhood protest?
The present vs the preterite: how to choose
The closest tense to the present is the preterite, and choosing between them is one of the first decisions in Spanish. The rule is simple: the present reports what happens now, what happens regularly, or what is generally true, while the preterite reports one finished action in the past. The three pairs below use the same verb, so the only thing that changes is whether the action is happening now or is already finished. Time words help: ahora and todos los días point to the present, while ayer and anoche point to the preterite.
Present: “Me uno al equipo de fútbol.” — I join the football team.
Preterite: “Me uní al equipo de fútbol.” — I joined the football team.
The present sentence describes what happens now or regularly; the preterite sentence reports one finished action in the past. That difference — now versus finished — is the whole decision.
Present: “Se une a la protesta del barrio.” — He/she joins the neighbourhood protest.
Preterite: “Se unió a la protesta del barrio.” — He/she joined the neighbourhood protest.
The present sentence describes what happens now or regularly; the preterite sentence reports one finished action in the past. That difference — now versus finished — is the whole decision.
Present: “Nos unimos al club de lectura.” — We join the reading club.
Preterite: “Nos unimos al club de lectura.” — We joined the reading club.
The present sentence describes what happens now or regularly; the preterite sentence reports one finished action in the past. That difference — now versus finished — is the whole decision.
Example sentences: unirse in the present
Read these eight sentences out loud. They cover all six persons, so by the end you will have seen every form in the table used in a real sentence. Pay attention to the words around the verb — the time expressions, the objects, the other verbs — because those are what make each sentence sound natural.
“Me uno al equipo de fútbol.” — I join the football team.
“Te unes a la protesta del barrio.” — You join the neighbourhood protest.
“Se une al club de lectura.” — He/she joins the reading club.
“Nos unimos a nosotros en la fiesta.” — We join us at the party.
“Os unís al equipo de fútbol.” — You join the football team.
“Se unen a la protesta del barrio.” — They join the neighbourhood protest.
“Me uno al club de lectura.” — I join the reading club.
“Se une a nosotros en la fiesta.” — He/she joins us at the party.
Common mistakes with unirse in the present
These are the errors learners actually make with this verb in this tense. Each one shows the wrong version, the right version, and why the correction matters.
Wrong: “Yo une al equipo de fútbol.” Right: “Yo me uno al equipo de fútbol.” Why: Yo needs the yo form me uno. The form une belongs with él, ella or Ud.
Wrong: “Yo uno al equipo de fútbol.” Right: “Yo me uno al equipo de fútbol.” Why: Unirse is reflexive, so the pronoun me is required before the form. Without it the sentence is incomplete.
Wrong: “Ayer yo me uno a la protesta del barrio.” Right: “Ayer yo me uní a la protesta del barrio.” Why: The present tense cannot describe a finished action yesterday. Ayer forces the preterite, so the form must change to me uní.
Wrong: “Ellos se une a la protesta del barrio.” Right: “Ellos se unen a la protesta del barrio.” Why: Ellos needs the ellos form se unen. The singular une belongs with él, ella or a singular noun.
Quiz: unirse in the present
Choose the correct answer for each question, then check the answer key. Every answer is explained, so a wrong answer still teaches you something.
1. Complete the sentence: “Yo ___ al equipo de fútbol.”
- (a) me uno
- (b) te unes
- (c) se une
Answer: me uno — The yo form of unirse in the present is me uno.
2. Complete the sentence: “Tú ___ a la protesta del barrio.”
- (a) me uno
- (b) se une
- (c) te unes
Answer: te unes — The tú form of unirse in the present is te unes.
3. Complete the sentence: “Él/ella ___ al club de lectura.”
- (a) te unes
- (b) se une
- (c) me uno
Answer: se une — The él/ella form of unirse in the present is se une.
4. Complete the sentence: “Nosotros/as ___ a nosotros en la fiesta.”
- (a) nos unimos
- (b) me uno
- (c) te unes
Answer: nos unimos — The nosotros/as form of unirse in the present is nos unimos.
5. Complete the sentence: “Vosotros/as ___ al equipo de fútbol.”
- (a) me uno
- (b) te unes
- (c) os unís
Answer: os unís — The vosotros/as form of unirse in the present is os unís.
6. Complete the sentence: “Ellos/ellas ___ a la protesta del barrio.”
- (a) te unes
- (b) se unen
- (c) me uno
Answer: se unen — The ellos/ellas form of unirse in the present is se unen.
7. What does unirse mean in English?
- (a) to join
- (b) to join things together
- (c) to be about
Answer: to join — Unirse means to join.
8. Which sentence is in the present?
- (a) Me uní al equipo de fútbol.
- (b) Me uniré al equipo de fútbol.
- (c) Me uno al equipo de fútbol.
Answer: Me uno al equipo de fútbol. — “Me uno al equipo de fútbol.” is in the present. The other two use different tenses.
Frequently asked questions
Is unirse regular in the present?
Yes. Unirse is regular in the present: uno, unes, une, unimos, unís and unen. Watch the accents on the forms that carry them, and remember that the nosotros form is the one that keeps the stem unchanged.
What is the gerund and the past participle of unirse?
The gerund is uniendo, used with estar for the progressive: estoy uniendo. The past participle is unido, used with haber in the perfect tenses: he unido.
What should I watch out for with unirse?
Unirse takes a: me uno al equipo. The pronoun is what makes the joining your own. In the present, the form to fix in your memory first is uno, because the yo form shows the stem pattern for the whole tense.
How do I practise unirse in the present?
Say the six forms in the table out loud with the examples above, then use the unirse examples and quiz page for more sentences, and the Spanish Verb Quiz to test the forms under pressure.
Related pages
- Full conjugation of unirse — every tense of unirse in one place.
- Unirse examples and quiz — more sentences with unirse and a ten-question quiz.
- Spanish present guide — how the present works for all Spanish verbs.
- Spanish verbs — the hub for every Spanish verb on VerbFlow.
- Present tense conjugator — conjugate any verb in the present instantly.
- Verb quiz — test yourself on unirse and other verbs.