Concentrarse Examples, Sentences & Quiz in Spanish

concentrarse means “to concentrate” in English, and this page shows you how it actually sounds in everyday Spanish — not just the conjugation table, but the verb in real sentences, in short dialogues, and in the mistakes learners make with it. Concentrarse means to concentrate, to give all your attention to one thing and ignore the rest. It is the reflexive verb for studying, exams and work, and it is fully regular. Below you will find twelve example sentences grouped by tense, two short dialogues, the most common mistakes with corrections, and a ten-question quiz with explained answers. If you want the full tables first, start with the full conjugation of concentrarse; if you want to study one tense in depth, see the concentrarse present tense page.

concentrarse in everyday use: examples with translations

In the present tense

  1. Yo me concentro en el examen sin distraerse. — “I concentrate the exam without getting distracted.”
  2. Él se concentra en el trabajo hasta terminarlo. — “He concentrates work until I finish it.”
  3. Nosotros nos concentramos en la respiración antes de dormir. — “We concentrate my breathing before sleeping.”
  4. Ellos se concentran en el partido desde el primer minuto. — “They concentrate the match from the first minute.”

In the past

  1. Ayer, yo me concentré en el trabajo hasta terminarlo. — “Yesterday, I concentrated work until I finish it.”
  2. Antes, nosotros nos concentrábamos en la respiración antes de dormir. — “Before, we used to concentrate my breathing before sleeping.”
  3. Él se concentró en el partido desde el primer minuto. — “He concentrated the match from the first minute.”
  4. Yo ya me había concentrado en el examen sin distraerse antes de salir. — “I had already concentrated the exam without getting distracted before leaving.”

Plans, hopes and possibilities

  1. Mañana, tú te concentrarás en el examen sin distraerse. — “Tomorrow, you will concentrate the exam without getting distracted.”
  2. Yo me concentraría en el trabajo hasta terminarlo si tuviera más tiempo. — “I would concentrate work until I finish it if I had more time.”
  3. Él se ha concentrado en la respiración antes de dormir. — “He has concentrated my breathing before sleeping.”
  4. Espero que él se concentre en el partido desde el primer minuto. — “I hope he concentrates the match from the first minute.”

concentrarse in conversation

Two short dialogues that use concentrarse the way people really speak it. Notice how the verb changes with the person, and how the same verb fits different situations.

Two friends talk about their day.

  • Ana: Yo me concentro en el examen sin distraerse. — “I concentrate the exam without getting distracted.”
  • Bea: Él se concentra en el trabajo hasta terminarlo. — “He concentrates work until I finish it.”
  • Ana: Ayer, yo me concentré en el trabajo hasta terminarlo. — “Yesterday, I concentrated work until I finish it.”
  • Bea: Mañana, tú te concentrarás en el examen sin distraerse. — “Tomorrow, you will concentrate the exam without getting distracted.”

At home, talking about tomorrow.

  • Luis: Nosotros nos concentramos en la respiración antes de dormir. — “We concentrate my breathing before sleeping.”
  • Marta: Antes, nosotros nos concentrábamos en la respiración antes de dormir. — “Before, we used to concentrate my breathing before sleeping.”
  • Luis: Yo me concentraría en el trabajo hasta terminarlo si tuviera más tiempo. — “I would concentrate work until I finish it if I had more time.”
  • Marta: Espero que él se concentre en el partido desde el primer minuto. — “I hope he concentrates the match from the first minute.”

A short scene with concentrarse

A short scene shows how concentrarse works across the day. In the morning: Me concentro en el examen sin distraerse. In the afternoon: Se concentra en el trabajo hasta terminarlo. Yesterday it was different: Ayer, me concentré en la respiración antes de dormir. And tomorrow: Mañana, me concentraré en el partido desde el primer minuto. Four small moments, four tenses, one verb — that is how concentrarse sounds in real life. Try changing the person in each sentence: say it about yourself, about a friend, and about your family, and the forms will start to feel automatic.

Common mistakes with concentrarse

The errors learners actually make with concentrarse, each with the wrong form, the right form, and why the right form is right.

✗ Yo concentro en el examen sin distraerse.

✓ Correct: Yo me concentro en el examen sin distraerse.

Concentrarse is reflexive, so the pronoun me is required: without it the verb means something else, or nothing at all.

✗ Ayer yo concentro en el trabajo hasta terminarlo.

✓ Correct: Ayer yo concentré en el trabajo hasta terminarlo.

The present and the preterite are different tenses: concentro is happening now, while concentré is a finished action in the past. Use the preterite with ayer.

✗ Treating concentrarse and centrarse as identical in every context.

✓ Correct: Concentrarse means to concentrate, while centrarse means to focus on.

They overlap, but each has uses the other does not: concentrarse fits sentences such as Me concentro en el examen sin distraerse, while centrarse belongs in a different sentence. Check the meaning you want before choosing.

✗ Yo soy concentrado en el trabajo hasta terminarlo.

✓ Correct: Yo he concentrado en el trabajo hasta terminarlo.

Spanish perfect tenses use haber, not ser: he concentrado, has concentrado, ha concentrado. Ser plus the participle makes a passive, not a perfect tense.

✗ De niño, yo concentré en la respiración antes de dormir todos los días.

✓ Correct: De niño, yo concentraba en la respiración antes de dormir todos los días.

For a repeated habit in the past, use the imperfect (concentraba), not the preterite. The preterite (concentré) is for one finished action.

Quiz: concentrarse in use

Ten questions on concentrarse — its forms, its tenses and its everyday use. Choose the best answer for each one, then check the answer key below, where every answer is explained.

1. Complete the sentence: Él ______ en el trabajo hasta terminarlo. — “He/she concentrates work until I finish it.”

  • a) se concentra
  • b) me concentro
  • c) te concentras
  • d) nos concentramos

2. Complete the sentence: Ayer, yo ______ en la respiración antes de dormir. — “Yesterday, I concentrated my breathing before sleeping.”

  • a) te concentraste
  • b) se concentró
  • c) se concentraron
  • d) me concentré

3. Complete the sentence: Ellos ______ en el partido desde el primer minuto cuando eran jóvenes. — “They used to concentrate the match from the first minute when they were young.”

  • a) te concentrabas
  • b) nos concentrábamos
  • c) se concentraban
  • d) me concentraba

4. Complete the sentence: Mañana, nosotros ______ en el examen sin distraerse. — “Tomorrow, we will concentrate the exam without getting distracted.”

  • a) se concentrarán
  • b) nos concentraremos
  • c) me concentraré
  • d) te concentrarás

5. Complete the sentence: Él ______ en el trabajo hasta terminarlo si pudiera. — “He would concentrate work until I finish it if he could.”

  • a) se concentraría
  • b) me concentraría
  • c) te concentrarías
  • d) nos concentraríamos

6. Complete the sentence: Yo ______ en la respiración antes de dormir. — “I have concentrated my breathing before sleeping.”

  • a) te has concentrado
  • b) se ha concentrado
  • c) se han concentrado
  • d) me he concentrado

7. Complete the sentence: Espero que tú ______ en el partido desde el primer minuto. — “I hope you concentrate the match from the first minute.”

  • a) se concentre
  • b) nos concentremos
  • c) te concentres
  • d) me concentre

8. Which is the past participle of concentrarse, used with haber in the perfect tenses?

  • a) concentré
  • b) concentrado
  • c) concentrando
  • d) concentro

9. What does concentrarse mean in English?

  • a) to concentrate
  • b) to focus on
  • c) to delay
  • d) to report, to denounce

10. Which sentence is correct?

  • a) Él concentra en el trabajo hasta terminarlo.
  • b) Él concentro en el trabajo hasta terminarlo.
  • c) Nosotros concentra en la respiración antes de dormir.
  • d) Yo concentra en el examen sin distraerse.

Answer key

  1. a) se concentra — The sentence needs the él/ella/Ud. form in the present: se concentra.

  2. d) me concentré — The sentence needs the yo form in the preterite: me concentré, for one finished action yesterday.

  3. c) se concentraban — The sentence needs the ellos/ellas form in the imperfect: se concentraban, for a repeated past habit.

  4. b) nos concentraremos — The sentence needs the nosotros form in the future: nos concentraremos.

  5. a) se concentraría — The sentence needs the él/ella/Ud. form in the conditional: se concentraría.

  6. d) me he concentrado — The sentence needs the yo form in the present perfect: me he concentrado, haber + concentrado.

  7. c) te concentres — After espero que, the subjunctive is required: the tú present subjunctive is te concentres.

  8. b) concentrado — The past participle is concentrado: he concentrado, has concentrado, ha concentrado. The gerund concentrando is used with estar instead.

  9. a) to concentrate — concentrarse means to concentrate. The other options are the meanings of different verbs.

  10. a) Él concentra en el trabajo hasta terminarlo. — Él concentra en el trabajo hasta terminarlo. is correct: the verb agrees with its subject. The other sentences mix up the person and the form.

Frequently asked questions

How do I use concentrarse in everyday conversation?

Start with the phrases in the examples above — especially the common combinations such as Me concentro en el examen sin distraerse and Se concentra en el trabajo hasta terminarlo. Use the present tense for habits and general facts, and the preterite for things that happened once. Say the sentences aloud until the forms feel automatic, then swap in your own details: your own town, your own family, your own routine.

What is the difference between concentrarse and centrarse?

Concentrarse means “to concentrate”, while centrarse means “to focus on”. They are related words that learners often meet together, but they are not interchangeable — use concentrarse when you mean “to concentrate” and centrarse when you mean “to focus on”.

Which tense do I need most with concentrarse?

The present tense, for habits, routines and general facts — that is where you will use concentrarse most. The preterite comes next, for things that happened once and ended. The examples on this page use both, plus the imperfect, the future and the present perfect, so you can see the verb across the tenses you actually need.

Is concentrarse formal or informal?

Concentrarse is neutral — it is used in both formal and informal Spanish, at home, at work and at school. There is no special formal version of it; the same forms work in a conversation with a friend and in a letter to a company. What changes is the situation, not the verb.

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