How to Say "was useful" in Spanish
The Spanish word for “was useful” is “sirvió” — B1 level. This is a very common word in everyday Spanish.

Examples
El mapa viejo no sirvió para encontrar el camino.
The old map wasn't useful for finding the way.
Ella intentó usar la llave, pero no sirvió.
She tried to use the key, but it didn't work.
Su consejo me sirvió mucho durante la crisis.
His advice helped me a lot during the crisis.
Used with 'Para'
When talking about purpose, 'sirvió' is often followed by 'para' (for) to explain what the thing was useful for: 'Sirvió para abrir la puerta' (It was useful for opening the door).
Confusing Usefulness and Function
Mistake: “El celular *fue útil* (instead of 'sirvió').”
Correction: While 'fue útil' is correct, using 'sirvió' is a much more natural and common way to say 'the phone worked/was useful' in Spanish.
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.