To say could in Spanish, use the verb poder in one of three tenses. Podía (imperfect) is past ability: de niña podía nadar. Pude (preterite) is a single past success or failure: no pude abrir la puerta. Podría (conditional) is polite or hypothetical: ¿podría ayudarme? The verb after poder always stays in the infinitive.
could = podía (ability) · pude (one time) · podría (polite)- Podía vs podría
- Express past ability and possibility
- Make polite requests
How do you say could in Spanish? With the verb poder — but here's the catch: English "could" is one word doing three jobs, and Spanish gives each job its own tense. Past ability is podía, a one-time past success or failure is pude / no pude, and a polite or hypothetical "could" is podría.
After 40 years of teaching English speakers, I can tell you this is the modal verb that causes the most quiet damage. Students learn podía first, then use it for everything, and native speakers hear "I was able to" when they meant "I would be able to." The fix is simple once you see the three coulds side by side.
The big pictureThe three "coulds": podía, pude and podría
Before you pick a form, ask what your English "could" is actually doing. There are only three possibilities:
- Could = used to be able to (general past ability) → podía, the imperfect. Mi abuela podía coser sin mirar. (My grandmother could sew without looking.) No single moment, just a skill she had.
- Could = managed to / couldn't = failed to (one specific occasion) → pude / no pude, the preterite. Al final pude abrir la puerta. (In the end I could open the door — I managed to.) This one has a start and an end.
- Could = would be able to (polite, hypothetical, suggestion) → podría, the conditional. ¿Podría traerme la cuenta? (Could you bring me the check?) Nothing has happened yet; you are being polite or imagining.
Notice that two of the three coulds live in the past and one lives in a possible future. That is why "podía vs podría" is such a common search: the words differ by one letter, but they point in opposite directions in time.
The formsPoder in the imperfect, preterite and conditional
"Could" is always a form of poder + infinitive. The verb after it never changes: podía nadar, pude nadar, podría nadar. All you have to choose is the tense of poder.
| Subject | Imperfect (past ability) | Preterite (one occasion) | Conditional (polite / hypothetical) |
|---|---|---|---|
| yo | podía | pude | podría |
| tú | podías | pudiste | podrías |
| él / ella / usted | podía | pudo | podría |
| nosotros / nosotras | podíamos | pudimos | podríamos |
| vosotros / vosotras (Spain) | podíais | pudisteis | podríais |
| ellos / ellas / ustedes | podían | pudieron | podrían |
The preterite stem changes to pud- and drops the accents; the conditional keeps the -r- of the infinitive (podr-). Every tense of this verb is in my poder conjugation guide.
Polite requests: ¿Podría…? and ¿Podrías…?
This is the "could" you will use most as a traveler, and it only needs two forms. ¿Podrías…? is for someone you address as tú; ¿Podría…? is for usted — a waiter, a receptionist, an older person, anyone you would call "sir" or "ma'am" in English.
- ¿Podrías pasarme la sal? — Could you pass me the salt? (a friend)
- ¿Podría decirme dónde está la salida? — Could you tell me where the exit is? (a stranger)
- ¿Podríamos cambiar la reserva a las nueve? — Could we change the reservation to nine?
Podría is simply the Spanish conditional tense of poder, so it carries the same softening effect the conditional always does: ¿Puedes ayudarme? is fine, ¿Podrías ayudarme? is nicer.
"Could have": podría haber + participle
To say what was possible but did not happen, use podría haber + past participle: Podrías haber llamado. (You could have called.) Podríamos haber tomado el tren. (We could have taken the train.) In conversation you will also hear pude haber with the same meaning; both are correct.
In real lifeCould in Spanish: examples from travel, work and family
When "could" is about the past, try replacing it with "managed to." If the sentence still makes sense — I managed to open the door — you want the preterite, pude. If it sounds odd — I managed to sew without looking — you are talking about a general ability, and you want podía. It works nine times out of ten.
From the classroomCommon mistakes English speakers make with "could"
- Using podría for past ability. De joven, podría correr diez kilómetros sounds like "as a young man I would be able to run," which makes no sense. Past ability is the imperfect: De joven, podía correr diez kilómetros.
- Using podía for one specific success. Ayer podía comprar las entradas tells a native you had the ability but leaves them wondering whether you actually bought them. If you did, say Ayer pude comprar las entradas.
- Translating "could you" as "puedes tú." The request form is a question with the conditional and no pronoun needed: ¿Podrías ayudarme?, not ¿Puedes tú ayudarme?, which sounds like "can YOU help me (as opposed to someone else)?"
- Conjugating the second verb. Podía hablo and podría voy are the errors I correct most in beginners. After any form of poder, the next verb stays in the infinitive: podía hablar, podría ir.
- Forgetting that "couldn't" in the preterite means "tried and failed." No pude dormir means I tried to sleep and it did not happen. No podía dormir describes a period of insomnia. Both translate as "I couldn't sleep," so choose by meaning, not by the English.
Don't mix them upCould vs might in Spanish
Here is a twist that surprises students: podría also translates "might." Podría nevar means "it could snow" and "it might snow" at the same time, because in both cases you are describing a possibility. The difference between could and might in English is mostly one of confidence, and Spanish expresses that confidence with adverbs and the subjunctive rather than with a different verb. If you want to sound more tentative, reach for quizás, tal vez or puede que — the tools I cover in my guide to might in Spanish.
The "could" that has no overlap with "might" is the past one. Podía and pude only ever describe ability, and only ever in the past. If your English sentence could be rewritten with "was able to," you are in podía/pude territory and "might" never enters the picture.
Once these three forms feel automatic, the rest of the family — may, might, should, must — follows the same logic of tense and mood. You will find them all in my overview of Spanish modal verbs, and the video above walks through podía and podría with more examples.
PracticeQuick quiz: could in spanish
Six questions from the lesson. Answer in your head, then open to check.
