How to Say "vowed" in Spanish
The Spanish word for “vowed” is “prometió” — A2 level. This is a very common word in everyday Spanish.

Examples
Mi jefe prometió que me daría el día libre.
My boss promised that he would give me the day off.
Ella prometió guardar el secreto, pero no lo hizo.
She promised to keep the secret, but she didn't.
Usted prometió terminar el trabajo antes de las cinco.
You (formal) promised to finish the work before five.
The Preterite Tense
The form 'prometió' is used when the action of promising happened once and finished completely in the past, like a sealed deal. It focuses on the specific moment the promise was made.
Preterite vs. Imperfect
Mistake: “Using 'prometía' when referring to a single, completed promise: 'Ayer prometía llamarme.'”
Correction: Use 'prometió': 'Ayer prometió llamarme.' (Yesterday, he promised to call me.) 'Prometía' would mean he was habitually promising or promising over a long period.
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.