Ejercer in the Present Tense

Introduction

The present tense of ejercer — «to exercise, to practise (a profession)» — is the form you will reach for most often. It talks about habits, facts and what is happening right now, and it is the first tense to master for this verb. ejercer is a spelling-changing -er verb verb, so the present follows the -er endings. On this page you will find the full present-tense table, how the forms are built, five usage rules with examples, a comparison with the preterite, more example sentences, the mistakes learners make in this tense, an eight-question quiz and answers to common questions. A good first sentence is «Yo ejerzo todos los días» — I exercise every day.

Ejercer in the Present Tense — full table

Person Form
yo ejerzo
tú ejerces
él/ella/Ud. ejerce
nosotros/as ejercemos
vosotros/as ejercéis
ellos/ellas/Uds. ejercen

Gerund: ejerciendo · Past participle: ejercido

How the present tense of ejercer is formed

Take the stem ejerc — the infinitive ejercer without its -er ending — and add the present endings. The table below shows the build for every person, using the actual stem of each form:

Person Stem Ending Form
yo ejerz -o ejerzo
tú ejerc -es ejerces
él/ella/Ud. ejerc -e ejerce
nosotros/as ejerc -emos ejercemos
vosotros/as ejerc -éis ejercéis
ellos/ellas/Uds. ejerc -en ejercen

There is also a spelling change in the present: the yo form is ejerzo, not ejerco. The stem-final letter changes before e and i so the sound stays the same; the endings are unchanged.

The present is the only tense where the yo form ends in -o for all three verb classes, which makes it a useful anchor: if you know ejerzo, you can build the rest of the table from the stem and the endings above.

When to use the present tense of ejercer

1. Daily routines and habits

The most common use: things you do regularly. Time words like todos los días, siempre and a veces are the giveaway.

Yo ejerzo todos los días. — I exercise every day.

2. General truths and facts

Use the present for things that are true in general, not just today. No time expression is needed — the statement stands on its own.

Él ejerce con mi familia. — He exercises with my family.

3. What is happening right now

For an action in progress, the present works on its own in Spanish, and you can also use estar + the gerund ejerciendo for emphasis. Both are correct; the gerund version stresses that it is happening this very moment.

Nosotros ejercemos por la mañana. — We exercise in the morning.

4. Scheduled near-future plans

Spanish often uses the present for a fixed plan in the near future, where English would say «going to». A time expression such as mañana or la semana que viene makes the future meaning clear.

Tú ejerces en el trabajo. — You exercise at work.

5. Narrating and commenting

The present is the tense of live commentary and of stories told as if they were happening now. It keeps the listener in the moment, and it is the tense of instructions and explanations.

Ellos ejercen a veces. — They exercise sometimes.

Present Tense vs Preterite: how to choose

The present and the preterite answer different questions. The present says what happens in general or what is happening now; the preterite says what happened once and is over. Compare the pairs below — same verb, different time frame:

  • Present: Yo ejerzo todos los días. — I exercise every day.

  • Preterite: Ayer yo ejercí por la tarde. — Yesterday I exercised in the afternoon.

  • A routine against a single finished event. The present describes the habit; the preterite reports the one time it happened.

  • Present: Él ejerce por la mañana. — He exercises in the morning.

  • Preterite: Ayer él ejerció por la tarde. — Yesterday He exercised in the afternoon.

  • What happens in the morning in general, against what happened yesterday afternoon. The time expression decides the tense.

  • Present: Nosotros ejercemos con mi familia. — We exercise with my family.

  • Preterite: La semana pasada nosotros ejercimos dos veces. — Last week We exercised twice.

  • A shared habit against a shared finished event. If the action repeats, use the present; if it happened once and ended, use the preterite.

Example sentences: ejercer in the present

  1. Yo ejerzo todos los días. — I exercise every day.
  2. Tú ejerces en el trabajo. — You exercise at work.
  3. Él ejerce con mi familia. — He exercises with my family.
  4. Nosotros ejercemos por la mañana. — We exercise in the morning.
  5. Vosotros ejercéis cuando hay tiempo. — You exercise when there is time.
  6. Ellos ejercen a veces. — They exercise sometimes.
  7. Yo ejerzo en el trabajo. — I exercise at work.
  8. Él ejerce todos los días. — He exercises every day.

Common mistakes with ejercer in the present

1. Missing the spelling change

Wrong: Yo ejerco.

Right: Yo ejerzo.

The yo form of ejercer in the present is ejerzo, not ejerco. The spelling adjusts so the consonant keeps its sound before the -o ending.

2. Forgetting the accent on the vosotros form

Wrong: Vosotros ejerceis.

Right: Vosotros ejercéis.

The vosotros form ejercéis carries a written accent on the ending. Without it the word is misspelled, and in speech the stress falls in the wrong place.

3. Using the present for a finished event

Wrong: Ayer yo ejerzo.

Right: Ayer yo ejercí.

Ayer belongs with the preterite. The present ejerzo talks about now or about a habit; a finished yesterday needs ejercí.

4. Using the yo form for every person

Wrong: Ellos ejerzo.

Right: Ellos ejercen.

Each person has its own form: ellos take ejercen, not the yo form ejerzo. The -n ending on ejercen is what marks the third-person plural.

5. Using the present instead of the progressive

Wrong: Estoy ejerzo.

Right: Estoy ejerciendo.

After estar, Spanish needs the gerund: estoy ejerciendo. The conjugated present ejerzo never follows estar.

Quiz: ejercer in the present

Test yourself on the present tense of ejercer. Choose the correct answer, then check the key below.

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

- (a) ejerce
- (b) ejerzo
- (c) ejercen
- (d) ejerces

2. What is the yo form of ejercer in the present indicative?

- (a) ejerces
- (b) ejercemos
- (c) ejerzo
- (d) ejerce

3. What is the tú form of ejercer in the present indicative?

- (a) ejerce
- (b) ejerces
- (c) ejerzo
- (d) ejercemos

4. What is the él/ella/Ud. form of ejercer in the present indicative?

- (a) ejerce
- (b) ejerces
- (c) ejercemos
- (d) ejerzo

5. What is the nosotros/as form of ejercer in the present indicative?

- (a) ejercemos
- (b) ejerces
- (c) ejerce
- (d) ejerzo

6. What is the vosotros/as form of ejercer in the present indicative?

- (a) ejercéis
- (b) ejerzo
- (c) ejerces
- (d) ejerce

7. What is the gerund of ejercer?

- (a) ejerzo
- (b) ejercer
- (c) ejercido
- (d) ejerciendo

8. What is the past participle of ejercer?

- (a) ejercer
- (b) ejercido
- (c) ejerciendo
- (d) ejercí

Answer key

1. (c) — In the present indicative, the ellos/ellas/Uds. form of ejercer is ejercen. The other options are the same tense but different persons. 2. (c) — In the present indicative, the yo form of ejercer is ejerzo. The other options are the same tense but different persons. 3. (b) — In the present indicative, the tú form of ejercer is ejerces. The other options are the same tense but different persons. 4. (a) — In the present indicative, the él/ella/Ud. form of ejercer is ejerce. The other options are the same tense but different persons. 5. (a) — In the present indicative, the nosotros/as form of ejercer is ejercemos. The other options are the same tense but different persons. 6. (a) — In the present indicative, the vosotros/as form of ejercer is ejercéis. The other options are the same tense but different persons. 7. (d) — The gerund of ejercer is ejerciendo. It is used with estar for the progressive: «Estoy ejerciendo». 8. (b) — The past participle of ejercer is ejercido. It follows haber in all the perfect tenses: «he ejercido».

Frequently asked questions

Is ejercer regular in the present?

Almost — ejercer takes the regular -er endings in the present, with a spelling change in the yo form (ejerzo). Once you know that one form, the rest of the table is regular.

What is the yo form of ejercer in the present?

It is ejerzo. Use it for talking about yourself right now.

How is the present different from the preterite for ejercer?

The present (ejerzo) describes habits and what is happening now; the preterite (ejercí) reports a single finished event. «Yo ejerzo todos los días» is a habit, while «Ayer yo ejercí» is one event that ended yesterday.

Can I use the present of ejercer with estar and the gerund?

Yes — «Estoy ejerciendo» means «I am exercising right now», with the emphasis on the action in progress. The plain present «Yo ejerzo» is also correct for what is happening now; the gerund version simply stresses the moment.

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