Word/Phrase: we regret to inform you
Translation: lamentamos informarle
Pronunciation: lameˈtamos inforˈmaɾle
We regret to inform you - Lamentamos informarle
This news is difficult, and we regret to inform you - Esta noticia es difícil, y lamentamos informarle
We regret to inform you that the event is canceled - Lamentamos informarle que el evento está cancelado
I regret to inform you about the changes - Lamento informarle sobre los cambios
We regret to inform you of the delay - Lamentamos informarle sobre el retraso