How to Say "you utilized" in Spanish
The Spanish word for “you utilized” is “usaste” — A1 level. This is a very common word in everyday Spanish.

Examples
¿Usaste el teléfono de la oficina ayer?
Did you use the office phone yesterday?
Me encantó la camisa que usaste para la fiesta.
I loved the shirt you wore for the party.
Usaste mi cargador sin preguntar, ¿verdad?
You used my charger without asking, right?
The 'You' Form (Tú)
'Usaste' is specifically the informal 'you' form (tú). If you were talking to a boss or someone you don't know well, you would use 'usted usó'.
Simple Past (Preterite)
This verb form describes a single, completed action in the past. It tells us when the action started and finished: 'You used it once and that was it.'
Confusing Past Tenses
Mistake: “Using 'usabas' instead of 'usaste'.”
Correction: Use 'usaste' when the action happened once and is finished ('You used it yesterday'). Use 'usabas' for repeated actions or descriptions in the past ('You used to use it often').
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