Jurar Present Tense Conjugation in Spanish

The present tense of jurar — "to swear" 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 jurar 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. Jurar means to swear, and it covers swearing to tell the truth in court, swearing loyalty and swearing an oath. It is a fully regular -ar verb, and it is stronger than prometer, which is a simple promise. To see it in a real sentence: Él jura decir la verdad ante el juez. — "He/she swears to tell the truth before the judge." Work through the table below, then the formation notes, the usage rules and the contrast with the preterite, and test yourself at the end.

Present tense conjugation table: jurar

Every person of jurar in the present tense. The gerund is jurando and the past participle is jurado.

Present indicative

Person Form
yo juro
tú juras
él/ella/Ud. jura
nosotros/as juramos
vosotros/as juráis
ellos/ellas/Uds. juran

How the present indicative of jurar is formed

The present indicative of jurar is built from the stem jur- plus the present endings for -ar verbs. Take the infinitive, drop the -ar 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 juro
tú -as juras
él/ella/Ud. -a jura
nosotros/as -amos juramos
vosotros/as -áis juráis
ellos/ellas/Uds. -an juran

The gerund of jurar is jurando and the past participle is jurado. Both are regular for this verb, and the participle is the form you need for all the perfect tenses with haber.

When to use the present tense of jurar

The present tense is not one single use — it covers several situations, and jurar appears in all of them. The five uses below are the ones you will meet most often, each with an example that shows the verb in a natural sentence.

Habits and routines

The present tense describes things you do regularly. If you do it every day, every week or every morning, the present is the tense to use. For jurar, this use looks like this: "Yo juro decir la verdad ante el juez." — "I swear to tell the truth before the judge." Notice how the present form carries the time meaning on its own, without any extra word for the tense.

General facts

The present tense states facts that are generally true, not tied to one moment. It is the tense for definitions and permanent situations. For jurar, this use looks like this: "Él jura lealtad a su país." — "He/she swears loyalty to his country." Notice how the present form carries the time meaning on its own, without any extra word for the tense.

What is happening now

The present tense also covers what is happening at this moment, especially with verbs that describe an action in progress. For jurar, this use looks like this: "Nosotros juramos por su madre que era inocente." — "We swear by his mother that he was innocent." Notice how the present form carries the time meaning on its own, without any extra word for the tense.

Timetables and schedules

The present tense is used for fixed plans and timetables, such as trains, classes and opening times, even when they refer to the future. For jurar, this use looks like this: "Ellos juran no volver a mentir." — "They swear never to lie again." Notice how the present form carries the time meaning on its own, without any extra word for the tense.

Instructions and requests

The present tense appears in instructions and polite requests, where it sounds softer than a direct command. For jurar, this use looks like this: "Tú juras decir la verdad ante el juez." — "You swear to tell the truth before the judge." Notice how the present form carries the time meaning on its own, without any extra word for the tense.

The present tense vs the preterite

Learners often mix up the present and the preterite with jurar. The rule is simple: the present is for habits, facts and what is happening now, while the preterite is for one finished action in the past. The three pairs below show the same idea in both tenses, so you can feel the difference.

Pair 1: present vs preterite

  • Present: "Yo juro decir la verdad ante el juez." — "I swear to tell the truth before the judge."
  • Preterite: "Yo juré decir la verdad ante el juez." — "I swore to tell the truth before the judge." The first sentence uses the present because it describes a habit or a present fact; the second uses the preterite because it describes a finished action. The verb is the same — only the tense changes the meaning.

Pair 2: present vs preterite

  • Present: "Él jura lealtad a su país." — "He/she swears loyalty to his country."
  • Preterite: "Él juró lealtad a su país." — "He/she swore loyalty to his country." The first sentence uses the present because it describes a habit or a present fact; the second uses the preterite because it describes a finished action. The verb is the same — only the tense changes the meaning.

Pair 3: present vs preterite

  • Present: "Nosotros juramos por su madre que era inocente." — "We swear by his mother that he was innocent."
  • Preterite: "Nosotros juramos por su madre que era inocente." — "We swore by his mother that he was innocent." The first sentence uses the present because it describes a habit or a present fact; the second uses the preterite because it describes a finished action. The verb is the same — only the tense changes the meaning.

Example sentences in the present tense

Eight natural sentences with jurar in the present tense only. Each one uses a form from the table above.

  1. Yo juro decir la verdad ante el juez. — I swear to tell the truth before the judge.
  2. Tú juras lealtad a su país. — You swear loyalty to his country.
  3. Él jura por su madre que era inocente. — He/she swears by his mother that he was innocent.
  4. Nosotros juramos no volver a mentir. — We swear never to lie again.
  5. Vosotros juráis decir la verdad ante el juez. — You all swear to tell the truth before the judge.
  6. Ellos juran lealtad a su país. — They swear loyalty to his country.
  7. Yo juro por su madre que era inocente. — I swear by his mother that he was innocent.
  8. Él jura no volver a mentir. — He/she swears never to lie again.

Common mistakes

  1. Wrong: Vosotros jurais lealtad a su país. — Right: Vosotros juráis lealtad a su país. — The vosotros present form carries a written accent: juráis, not jurais.
  2. Wrong: Ayer, yo juro por su madre que era inocente. — Right: Ayer, yo juré por su madre que era inocente. — Ayer means yesterday, so it needs the preterite (juré), not the present (juro). The present is for now, not for yesterday.
  3. Wrong: Yo jura decir la verdad ante el juez. — Right: Yo juro decir la verdad ante el juez. — The person matters: jura is the él/ella/Ud. form, while the yo form is juro.
  4. Wrong: Yo soy jurado lealtad a su país. — Right: Yo he jurado lealtad a su país. — Spanish perfect tenses use haber, not ser: he jurado. Ser plus the participle makes a passive, not a perfect tense.

Quiz: test yourself

Eight questions on the present tense of jurar. Choose the right form, then check the answer key below.

  1. Complete the sentence: Yo ___ decir la verdad ante el juez. (present tense) A. juro B. juras C. jura D. juramos

  2. Complete the sentence: Tú ___ lealtad a su país. (present tense) A. juras B. juro C. jura D. juramos

  3. Complete the sentence: Él ___ por su madre que era inocente. (present tense) A. jura B. juro C. juras D. juramos

  4. Complete the sentence: Nosotros ___ no volver a mentir. (present tense) A. juramos B. juro C. juras D. jura

  5. Complete the sentence: Vosotros ___ decir la verdad ante el juez. (present tense) A. juráis B. juro C. juras D. jura

  6. Complete the sentence: Ellos ___ lealtad a su país. (present tense) A. juran B. juro C. juras D. jura

  7. Complete the sentence: Yo ___ por su madre que era inocente. (present tense) A. juro B. juras C. jura D. juramos

  8. Complete the sentence: Él ___ no volver a mentir. (present tense) A. jura B. juro C. juras D. juramos

Answer key

  1. juro — The yo present form of jurar is juro. The other options are the other persons of the same tense.
  2. juras — The tu present form of jurar is juras. The other options are the other persons of the same tense.
  3. jura — The el present form of jurar is jura. The other options are the other persons of the same tense.
  4. juramos — The nosotros present form of jurar is juramos. The other options are the other persons of the same tense.
  5. juráis — The vosotros present form of jurar is juráis. The other options are the other persons of the same tense.
  6. juran — The ellos present form of jurar is juran. The other options are the other persons of the same tense.
  7. juro — The yo present form of jurar is juro. The other options are the other persons of the same tense.
  8. jura — The el present form of jurar is jura. The other options are the other persons of the same tense.

Frequently asked questions

When do I use the present tense of jurar?

Use the present tense of jurar for habits, facts and what is happening now. For example: Yo juro decir la verdad ante el juez. — "I swear to tell the truth before the judge." The usage rules above give five situations with examples.

How is the present tense of jurar formed?

Take the stem jur- and add the present endings for -ar verbs. The full table is at the top of this page.

What is the difference between the present and the preterite of jurar?

The present describes a habit or a present fact, while the preterite describes a finished action. Compare Yo juro lealtad a su país. with Yo juré lealtad a su país. — the verb is the same, but the time meaning changes.

How do I practise the present tense of jurar?

Drill the six forms in the table above until you can say them without looking, then use the jurar examples and quiz page for more sentences, and test yourself with the Jurar conjugation page for the full picture across all tenses.

Related links