How to Say "to suppose" in Spanish
The most common Spanish word for “to suppose” is “suponer” — use 'suponer' when making a guess or assumption based on existing knowledge or a reasonable inference..
suponer
/soo-poh-NEHR//su.poˈneɾ/

Examples
Supongo que vas a venir a la fiesta.
I suppose you're coming to the party.
No supongas nada hasta que hables con ella.
Don't assume anything until you talk to her.
The 'Poner' Connection
This word is just the word 'poner' (to put) with 'su-' at the start. Every time you change the ending of 'poner,' do the exact same thing for 'suponer'!
The 'Yo' form error
Mistake: “Yo supono”
Correction: Yo supongo
creer
/kreh-EHR//kɾeˈeɾ/

Examples
Creo que va a llover.
I think it's going to rain.
Ellos no creen la historia.
They don't believe the story.
¿Crees que es una buena idea?
Do you think it's a good idea?
Stating Beliefs vs. Expressing Doubt
When you state a belief with 'creo que...', use the normal verb form. Example: 'Creo que es verdad' (I think it's true). But when you express doubt with 'no creo que...', the next verb changes to a special form (the subjunctive). Example: 'No creo que sea verdad' (I don't think it's true). This is a key difference from English!
Mixing up 'creer' and 'pensar'
Mistake: “'Pienso que va a llover.'”
Correction: 'Creo que va a llover.' While both mean 'to think', 'creer' is much more common for expressing everyday opinions and beliefs. Use 'pensar' more for the active process of thinking or pondering.
imaginar
ee-mah-hee-NAR/imaɣiˈnaɾ/

Examples
Me imagino que ya comiste, ¿verdad?
I suppose you already ate, right?
¿Te imaginas el precio de esa casa?
Can you fathom the price of that house?
Se imaginaron que la reunión sería más corta.
They assumed the meeting would be shorter.
The Reflexive Change
When you add the reflexive pronoun (like 'me' or 'te'), the focus shifts from creating a picture to expressing an internal thought or assumption about reality.
Common Phrase
Use 'Me imagino que...' as a very natural, polite way to introduce an assumption in conversation.
asumir
ah-soo-MEER/a.suˈmiɾ/

Examples
Asumo que ya habrás leído el informe completo.
I presume you will have read the complete report by now.
Podemos asumir que el clima afectará el tráfico.
We can assume that the weather will affect traffic.
Mental Assumption
When used to mean 'to presume,' this verb is about making a logical jump or mental conclusion, rather than taking physical action.
Choosing Between 'Suponer' and 'Creer'
Related Translations
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