estaban estallando
-they/you were exploding
Imperfecto progresivo para el sujeto ellos/ellas/ustedes del verbo estallar.

estallar

Popularity
10,500+ learners.
Anoche, los vecinos estaban estallando petardos y no me dejaban dormir.
Last night, the neighbors were setting off firecrackers and wouldn't let me sleep.
Palabra del día
la flor