hayan estallado
-they/you have exploded
Antepresente de subjuntivo para el sujeto ellos/ellas/ustedes del verbo estallar.

estallar

Se ha colmado el límite de su paciencia y es un milagro que no hayan estallado antes.
Their patience has been pushed to the limit and the miracle is that it did not boil over before.
Palabra del día
congelado