What is the present subjunctive of saber in Spanish?

The present subjunctive of saber is: sepa, sepas, sepa, sepamos, sepáis, sepan. Derived from the irregular stem sep-, unrelated to the present indicative (sé, sabes, sabe). One of six fully irregular subjunctive verbs.

Why is the stem sep- and not sab-?

Saber is one of six fully irregular subjunctive verbs in Spanish (ser, ir, dar, haber, saber, ver) whose stems don't derive from the present indicative. Memorize as exceptions to the standard yo-form rule.

How do I choose between subjunctive saber and conocer?

Same rule as the indicative: saber = know facts or know how to do something (sepa la respuesta, sepas nadar); conocer = be familiar with people, places, or things (conozca a María, conozcas Madrid). The mood doesn't change the choice between the two verbs.

What triggers the subjunctive of saber most often?

Wishes (quiero que sepas), doubts (dudo que sepa), impersonal expressions (es importante que sepas), and negative statements about knowing (no creo que sepa) are the most common triggers. The subjunctive of saber appears constantly in discussions of knowledge, skills, and awareness.

How can I learn subjunctive saber naturally?

Subjunctive saber appears in wishes about knowledge, recommendations to learn things, and doubts about what people know. Parrot's short-form videos surface these contexts repeatedly, so the irregular stem sep- and its endings become automatic with exposure.

Spanish grammar · Intermediate

Subjunctive of Saber: All Forms with Examples

Written by Sofia Ramirez, Lead Spanish Curriculum Editor · Reviewed May 2026

Saber's present subjunctive is irregular: sepa, sepas, sepa, sepamos, sepáis, sepan. The stem sep- is unrelated to the present indicative sé / sabes / sabe. One of the six fully irregular subjunctives in Spanish.

Quiero que sepas la verdad.

I want you to know the truth.

What it is

Saber's present subjunctive uses the irregular stem sep-: sepa, sepas, sepa, sepamos, sepáis, sepan. Like ser, ir, dar, haber, and ver, the stem doesn't derive from any indicative form (compare with sé, sabes, sabe, sabemos, sabéis, saben). Used after standard subjunctive triggers expressing wish, doubt, emotion, recommendation.

In Quiero que sepas la verdad (I want you to know the truth), sepas is the tú subjunctive of saber. The wish trigger forces the mood shift.

How to spot it

Look for sep- followed by -a endings: sepa, sepas, sepa, sepamos, sepáis, sepan. The stem sep- is the giveaway, it doesn't appear anywhere in the indicative.

Espero que sepas la respuesta. — I hope you know the answer.
Dudo que sepan lo que pasó. — I doubt they know what happened.
Es importante que sepamos los detalles. — It's important we know the details.

Saber covers knowing facts, knowing how to do something, and being aware. Its subjunctive shows up in any wish, doubt, or recommendation about knowledge or skills.

Subjunctive of Saber Quick Reference

Present subjunctive of saber, all six forms

Person	Form	Translation
yo	sepa	(that) I know
tú	sepas	(that) you know
él/ella/Ud.	sepa	(that) he, she, you (formal) know
nosotros	sepamos	(that) we know
vosotros	sepáis	(that) you all know (Spain)
ellos/Uds.	sepan	(that) they, you all know

Common Subjunctive of Saber Examples in Spanish

Subjunctive saber shows up in wishes about knowledge (wanting someone to know something), doubts about what people know, recommendations to find out, and impersonal evaluations of knowledge.

Wishes (querer que, esperar que)

Quiero que sepas que te quiero.: I want you to know that I love you.
Espero que sepa cómo llegar.: I hope he knows how to get there.
Deseo que sepamos la verdad pronto.: I wish we'd know the truth soon.
Quiere que sepas su nombre.: She wants you to know her name.
Esperan que sepan inglés.: They hope they know English.

Wishes for someone to know something, whether factual information, feelings, or skills, take the subjunctive.

Doubt (dudar que, no creer que)

Dudo que sepa la respuesta.: I doubt he knows the answer.
No creo que sepamos suficiente.: I don't think we know enough.
Es posible que sepan algo.: It's possible they know something.
Puede que sepas más de lo que crees.: You might know more than you think.
Quizás sepa la solución.: Maybe she knows the solution.

Doubt about what people know is a major use of subjunctive saber.

Negative Knowledge Statements

No sabía que estuvieras aquí.: I didn't know you were here.
No creía que supieras italiano.: I didn't think you knew Italian.
Niega que sepa la verdad.: He denies knowing the truth.
No es seguro que sepan dónde estamos.: It's not certain they know where we are.
Nadie cree que sepa la respuesta.: Nobody thinks he knows the answer.

Negative statements about knowing (no creer que, negar que, no es seguro que) trigger the subjunctive.

Impersonal Triggers

Es importante que sepas defenderte.: It's important you know how to defend yourself.
Es necesario que sepamos los hechos.: It's necessary we know the facts.
Es bueno que sepa varios idiomas.: It's good he knows several languages.
Es raro que no sepan nada.: It's strange they don't know anything.
Es triste que no sepáis lo que pasó.: It's sad you all don't know what happened.

Impersonal expressions evaluating knowledge or skills (es importante saber, es necesario saber) trigger the subjunctive.

How to Form the Subjunctive of Saber

Memorize the Sep- Stem

Saber's subjunctive uses the irregular stem sep-, with no relation to the present indicative (sé, sabes, sabe). One of the six fully irregular subjunctive verbs in Spanish. Just memorize: sepa, sepas, sepa, sepamos, sepáis, sepan.

saber → sep- → sepa, sepas, sepa, sepamos, sepáis, sepan.

Stem unrelated to the present indicative.

No yo-form derivation, no stem change, just memorize.

Same Yo and Él/Ella Forms

Like all subjunctive conjugations, yo and él/ella/usted share the same form: sepa. Use subject pronouns or context to disambiguate.

Espero que (yo) sepa la respuesta. Espero que (él) sepa la respuesta.

Add pronouns when needed.

yo and él/ella always identical.

Saber vs. Conocer in Subjunctive

The saber vs. conocer distinction stays the same in the subjunctive. Saber = know facts, know how to do something. Conocer = be familiar with people, places, things. Quiero que sepa la respuesta (factual knowledge, saber) vs. Quiero que conozca a mi familia (familiarity, conocer).

Quiero que sepa la verdad. Quiero que conozca a mi madre.

Saber = facts/skills. Conocer = familiarity.

Pick the verb the same way as in the indicative, then conjugate.

Same Triggers as All Subjunctives

Subjunctive saber responds to all standard W.E.I.R.D.O. triggers. The trigger + que + subjunctive form.

Quiero que. Es importante que. Dudo que. Ojalá que sepa.

Same triggers across all verbs.

Trigger + que = subjunctive.

Common Mistakes with Subjunctive of Saber

Incorrect: Quiero que sabes la verdad. — I want you to know the truth. (wrong, indicative after querer que)

Correct: Quiero que sepas la verdad. — I want you to know the truth.

After querer que, the dependent verb must be in the subjunctive. Sabes is the indicative; sepas is the tú subjunctive form, using the irregular stem sep-.

Incorrect: Es importante que sabamos los hechos. — It's important we know the facts. (wrong, indicative-style nosotros)

Correct: Es importante que sepamos los hechos. — It's important we know the facts.

The subjunctive nosotros form is sepamos, not sabamos. The irregular stem sep- carries through all six subjunctive forms.

Incorrect: Sé que sepa la respuesta. — I know he knows the answer. (wrong, fact assertion takes indicative)

Correct: Sé que sabe la respuesta. — I know he knows the answer.

Saber que asserts a fact and takes the indicative (sabe), not the subjunctive (sepa). Only triggers expressing doubt, wish, or opinion force the subjunctive.

Subjunctive of Saber FAQs

What is the present subjunctive of saber in Spanish?: The present subjunctive of saber is: sepa, sepas, sepa, sepamos, sepáis, sepan. Derived from the irregular stem sep-, unrelated to the present indicative (sé, sabes, sabe). One of six fully irregular subjunctive verbs.
Why is the stem sep- and not sab-?: Saber is one of six fully irregular subjunctive verbs in Spanish (ser, ir, dar, haber, saber, ver) whose stems don't derive from the present indicative. Memorize as exceptions to the standard yo-form rule.
How do I choose between subjunctive saber and conocer?: Same rule as the indicative: saber = know facts or know how to do something (sepa la respuesta, sepas nadar); conocer = be familiar with people, places, or things (conozca a María, conozcas Madrid). The mood doesn't change the choice between the two verbs.
What triggers the subjunctive of saber most often?: Wishes (quiero que sepas), doubts (dudo que sepa), impersonal expressions (es importante que sepas), and negative statements about knowing (no creo que sepa) are the most common triggers. The subjunctive of saber appears constantly in discussions of knowledge, skills, and awareness.
How can I learn subjunctive saber naturally?: Subjunctive saber appears in wishes about knowledge, recommendations to learn things, and doubts about what people know. Parrot's short-form videos surface these contexts repeatedly, so the irregular stem sep- and its endings become automatic with exposure.