How to Say "i guess" in Spanish
The most common Spanish word for “i guess” is “supongo” — use 'supongo' for a general, informal assumption or when you think something is probably true, often in everyday conversation..
supongo
/soo-PONG-go//suˈpoŋ.ɡo/

Examples
Supongo que ya sabes la respuesta.
I suppose you already know the answer.
Supongo que tienes razón.
I suppose you're right.
El tren llegará tarde, supongo.
The train will be late, I guess.
Supongo que no hay otra opción.
I assume there's no other option.
Expressing Guesses with 'que'
Use 'supongo que...' to introduce something you think is true but aren't 100% sure about. It's the perfect Spanish equivalent of 'I guess that...' or 'I suppose that...'.
Which Verb Form Follows?
After 'supongo que', you almost always use a normal, statement-making verb form (what's technically called the 'indicative'). Think of it this way: you are stating what you suppose. For example, 'Supongo que estás cansado' (I suppose you are tired).
Certainty vs. Supposition
Mistake: “Using 'supongo' when you are certain about something. For example: 'Supongo que mi cumpleaños es en junio' (when you know it is).”
Correction: Use 'sé' for facts ('Sé que mi cumpleaños es en junio'). Keep 'supongo' for your guesses, assumptions, and opinions that aren't facts.
imagino
ee-mah-HEE-noh/i.maˈxi.no/

Examples
Imagino que el viaje será largo.
I imagine the trip will be long.
Imagino que tienes hambre después de un día tan largo.
I suppose you are hungry after such a long day.
No imagino cuánto dinero cuesta ese coche nuevo.
I can't imagine (I have no idea) how much that new car costs.
Imagino que el jefe estará contento con el resultado.
I guess the boss will be happy with the result.
Follow-up Verb Form
When 'imagino' is followed by 'que' and another complete thought (like 'que tienes hambre'), the second verb usually stays in its normal present tense form (the indicative mood) because you are expressing a confident belief.
Supongo vs. Imagino Formality
Related Translations
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