Both poder and saber can translate to “can” in English, which makes them easy to mix up. But they cover completely different ideas — and swapping them changes your meaning entirely.
The Short Version
- Poder = to be able to — physical ability, permission, or circumstance
- Saber = to know how to — a learned skill or knowledge
The difference: Puedo nadar means the conditions are right (the pool is open, your leg isn’t broken). Sé nadar means you’ve learned to swim and have the skill.
Poder: Ability and Circumstance
Use poder when something is possible because of external or physical conditions — not because of learned skill.
Physical or situational ability
- ¿Puedes ayudarme? — Can you help me? (Are you free to? Is it possible?)
- No puedo ir esta noche. — I can’t go tonight. (I’m busy / the situation doesn’t allow it.)
- Podemos salir a las cinco. — We can leave at five.
- El niño no puede levantar la caja. — The child can’t lift the box. (Not strong enough.)
Permission
- ¿Puedo entrar? — Can I come in? (May I?)
- No puedes fumar aquí. — You can’t smoke here.
- ¿Pueden aparcar en esta calle? — Can they park on this street?
Possibility
- Eso puede pasar. — That can happen. (It’s possible.)
- Puede que llueva. — It might rain.
- ¿Puede ser verdad? — Can it be true?
Saber: Knowing How
Use saber when someone has a skill or knowledge that comes from learning. The ability is internal, not situational.
Learned skills
- Sé nadar. — I know how to swim. (I’ve learned.)
- Ella sabe cocinar muy bien. — She knows how to cook very well.
- ¿Sabes conducir? — Do you know how to drive?
- No sé tocar la guitarra. — I don’t know how to play guitar.
Knowledge of facts
- Sé dónde vive. — I know where he lives.
- ¿Sabes qué hora es? — Do you know what time it is?
- No sabemos la respuesta. — We don’t know the answer.
Languages
- Sabe hablar chino. — She knows how to speak Chinese.
- Saben inglés. — They know English.
Practice poder and saber conjugations across all tenses.
Hablito drills verb conjugations across all tenses until they become automatic — free, no account needed.
Where It Gets Interesting
The same person, two different sentences
- Sé nadar, pero hoy no puedo ir a la piscina. — I know how to swim, but I can’t go to the pool today.
Both are true at the same time. The skill exists (saber); the circumstance doesn’t allow it (poder).
Questions that work both ways (with different meaning)
- ¿Puedes tocar el piano? — Are you able to play piano? (Is there a piano here? Do you have time?)
- ¿Sabes tocar el piano? — Do you know how to play piano? (Did you learn?)
In everyday speech, Spanish speakers often use poder loosely to mean “can” in any sense. But to be precise — and to avoid confusion — the distinction above holds.
Quick Reference
| Situation | Use |
|---|---|
| Physical conditions allow it | poder |
| Permission is granted or asked | poder |
| Something is logically possible | poder |
| A skill learned through practice | saber |
| Knowledge of a fact | saber |
| Languages | saber |
Drill poder and saber until the difference is automatic.
Hablito drills verb conjugations across all tenses until they become automatic — free, no account needed.