How to Say "i guess" in Spanish
The most common Spanish word for “i guess” is “supongo” — use this when making a general, often informal, assumption or when you think something is likely true.
supongo
soo-PONG-gosuˈpoŋ.ɡo

Examples
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-nohi.maˈxi.no

Examples
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.
adivino
ah-dee-BEE-nohadiˈβino

Examples
Siempre adivino lo que vas a decir.
I always guess what you are going to say.
Adivino que tienes buenas noticias.
I guess that you have good news.
Si adivino el número, ¿me das un premio?
If I guess the number, will you give me a prize?
The 'I' form
When a verb ends in 'o' in the present time, it usually means 'I'. So 'adivino' specifically means 'I guess'.
Regular Patterns
This verb follows the standard rules for verbs ending in '-ar'. Once you learn this pattern, you can conjugate hundreds of other verbs just like it!
Using with 'que' vs Nouns
Mistake: “Adivino la respuesta.”
Correction: Adivino la respuesta (Correct). Adivino que es verdad (I guess that it's true).
Assumption vs. Prediction
Related Translations
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