Fiarse Examples, Sentences & Quiz

Introduction

fiarse means to trust, and it is one of those verbs that shows up everywhere once you start listening for it. It is a regular -ar verb, reflexive verb, and this page puts it to work: real example sentences in several tenses, grouped by use, two short passages that show the verb in context, the mistakes learners make with it, a ten-question quiz and answers to common questions. If you only learn one sentence, make it «Me fío todos los días» — I trust every day. The rest of this page builds out from there, tense by tense, so you can use fiarse the way native speakers do — in the present for habits, in the past for finished events, and in the subjunctive after wishes and doubts.

Fiarse in real example sentences

In the present: everyday use

The present is where fiarse lives most of the time — routines, facts and what is happening now:

  1. Me fío todos los días. — I trust every day.
  2. Te fías en el trabajo. — You trust at work.
  3. Se fía con mi familia. — He trusts with my family.
  4. Nos fiamos por la mañana. — We trust in the morning.

Talking about the past

In the past, choose the preterite for a finished event and the imperfect for a habit or background:

  1. Ayer me fie por la tarde. — Yesterday I trusted in the afternoon.
  2. Antes, me fiaba todos los días. — In the past, I used to trust every day.
  3. La semana pasada se fio dos veces. — Last week He trusted twice.

Plans and things already done

The future, the conditional and the present perfect round out the picture — plans, hypotheticals and recent events:

  1. Mañana me fiaré sin falta. — Tomorrow I will trust without fail.
  2. Si tuviera más tiempo, me fiaría ahora mismo. — If I had more time, I would trust right now.
  3. Hoy me he fiado dos veces. — Today I have trusted twice.

More everyday uses

The subjunctive, the imperative and the progressive cover wishes, commands and actions in progress:

  1. Espero que te fíes pronto. — I hope You trust soon.
  2. ¡No te fíes! — Don't trust!
  3. Ahora mismo me estoy fiando. — Right now I am trusting.

Fiarse in context

A short dialogue

Ana: «Me fío en el trabajo.» — I trust at work. Luis: «¡Qué bien! Me fío con mi familia.» — I trust with my family. Ana: «Mañana me fiaré sin falta.» — Tomorrow I will trust without fail. Luis: «Si tuviera más tiempo, me fiaría ahora mismo.» — If I had more time, I would trust right now. Ana: «Hoy me he fiado dos veces.» — Today I have trusted twice.

A short paragraph

Ayer me fie por la tarde. Antes, me fiaba todos los días. Hoy me he fiado dos veces. Mañana me fiaré sin falta.

Yesterday I trusted in the afternoon. In the past, I used to trust every day. Today I have trusted twice. Tomorrow I will trust without fail.

Common mistakes with fiarse

1. Forgetting the reflexive pronoun

Wrong: yo fío todos los días.

Right: me fío todos los días.

fiarse is reflexive: the pronoun me belongs before every conjugated form. Without it, you are using the non-reflexive verb, which means something different — doing the action to someone else instead of to yourself.

2. Using the imperfect for a finished event

Wrong: Ayer me fiaba.

Right: Ayer me fie.

Yesterday's finished action needs the preterite, fie. The imperfect fiaba describes what used to happen or what was going on, not a single completed event.

3. Using the indicative after a subjunctive trigger

Wrong: Espero que te fías.

Right: Espero que te fíes.

After espero que, Spanish requires the subjunctive: fíes, not the indicative fías. Wishes, hopes and doubts all trigger this change.

4. Using the affirmative imperative after no

Wrong: No te fía.

Right: No te fíes.

Negative commands use the subjunctive-based forms: no fíes. The affirmative fía can never follow no.

5. Confusing the gerund with the past participle

Wrong: He fiando.

Right: He fiado.

The perfect tenses use haber plus the past participle: he fiado. The gerund fiando goes with estar for actions in progress («Estoy fiando»), never with haber.

Quiz: fiarse in use

Test yourself on fiarse in use. Choose the correct answer, then check the key below.

1. What is the ellos/ellas/Uds. form of fiarse in the present indicative?

- (a) fías
- (b) fío
- (c) fían
- (d) fía

2. What is the yo form of fiarse in the preterite?

- (a) fiamos
- (b) fio
- (c) fie
- (d) fiaste

3. What is the tú form of fiarse in the future?

- (a) fiarás
- (b) fiaré
- (c) fiará
- (d) fiaremos

4. What is the él/ella/Ud. form of fiarse in the present perfect?

- (a) has fiado
- (b) hemos fiado
- (c) he fiado
- (d) ha fiado

5. What is the ellos/ellas/Uds. form of fiarse in the imperfect?

- (a) fiabas
- (b) fiaban
- (c) fiaba
- (d) fiaba

6. What is the gerund of fiarse?

- (a) fiando
- (b) fío
- (c) fiarse
- (d) fiado

7. What is the past participle of fiarse?

- (a) fiando
- (b) fiarse
- (c) fie
- (d) fiado

8. Which sentence uses fiarse correctly?

- (a) *Yo fía todos los días.*
- (b) *Me fío todos los días.* — I trust every day.
- (c) *Yo fías todos los días.*
- (d) *Yo fiarse todos los días.*

9. Which sentence uses fiarse correctly?

- (a) *Ayer yo fiaba por la tarde.*
- (b) *Ayer yo fiarse por la tarde.*
- (c) *Ayer me fie por la tarde.* — Yesterday I trusted in the afternoon.
- (d) *Ayer yo fío por la tarde.*

10. What does fiarse mean?

- (a) to annoy
- (b) to fix
- (c) to trust
- (d) to be missing

Answer key

1. (c) — In the present indicative, the ellos/ellas/Uds. form of fiarse is fían. The other options are the same tense but different persons. 2. (c) — In the preterite, the yo form of fiarse is fie. The other options are the same tense but different persons. 3. (a) — In the future, the tú form of fiarse is fiarás. The other options are the same tense but different persons. 4. (d) — In the present perfect, the él/ella/Ud. form of fiarse is ha fiado. The other options are the same tense but different persons. 5. (b) — In the imperfect, the ellos/ellas/Uds. form of fiarse is fiaban. The other options are the same tense but different persons. 6. (a) — The gerund of fiarse is fiando. It is used with estar for the progressive: «Estoy fiando». 7. (d) — The past participle of fiarse is fiado. It follows haber in all the perfect tenses: «he fiado». 8. (b) — Only this sentence pairs the right person with the right form of fiarse; the others mix a person with another person's form, or use the infinitive instead of a conjugated form. 9. (c) — Only this sentence pairs the right person with the right form of fiarse; the others mix a person with another person's form, or use the infinitive instead of a conjugated form. 10. (c) — fiarse means «to trust».

Frequently asked questions

How do you say 'I trust' in Spanish?

Say «Me fío todos los días». That is the present-tense yo form, and it is the sentence you will use most with this verb.

How do you say 'I trusted' about yesterday?

Say «Ayer me fie por la tarde». The preterite is the tense for a finished event: yesterday, last week, last night.

Is fiarse reflexive?

Yes — fiarse is reflexive, so every conjugated form takes its pronoun: me fío, te fías, se fía. The pronoun always comes before the verb, except in affirmative commands, where it attaches to the end.

Which tense do learners find hardest with fiarse?

Most learners struggle with choosing between the preterite and the imperfect, not with the forms themselves. Use the preterite (fie) for a single finished event and the imperfect (fiaba) for habits and background. After that, the subjunctive is the next step.

Related pages