How to Say "i knew" in Spanish
The most common Spanish word for “i knew” is “conocía” — use 'conocía' when referring to a past state of familiarity or acquaintance with people, places, or things..
conocía
Examples
Yo no conocía a nadie en la fiesta.
I didn't know anyone at the party.
supe
SOO-peh/ˈsu.pe/

Examples
Supe la verdad ayer durante la reunión.
I found out the truth yesterday during the meeting.
Cuando supe que te ibas, me puse triste.
When I learned/found out you were leaving, I got sad.
Intenté arreglar el coche, pero no supe cómo.
I tried to fix the car, but I didn't know how (or couldn't figure out how).
Supe vs. Sabía
This word ('supe') is the simple past, used to talk about the moment you gained knowledge. If you want to talk about knowledge you possessed over a period of time in the past, use the imperfect form: 'Sabía que venías' (I knew you were coming).
Irregular Preterite
The verb 'saber' is highly irregular in the simple past, using the stem 'sup-'. This pattern is shared with a few other common verbs, like 'tener' (tuve) and 'estar' (estuve).
Knowing vs. Finding Out
Mistake: “Using 'sabía' when meaning a sudden realization: 'Sabía la fecha ayer.' (I knew the date yesterday).”
Correction: Use 'supe' to emphasize discovery: 'Supe la fecha ayer.' (I found out the date yesterday). 'Sabía' means you possessed the knowledge beforehand.
Conocía vs. Supe
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.
