estuvieron generando
-they/you were generating
Preterite progressive ellos/ellas/ustedes conjugation of generar.

generar

Popularity
3,000+ learners.
Mis primeros artículos de blog estuvieron generando 100+ comentarios muy rápido, a pesar de que tenía muy poco tráfico.
My early blog articles were gaining 100+ comments pretty quickly, even though my traffic was really low.
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holidays