estábamos desilusionando
-we were disappointing
Imperfecto progresivo para el sujeto nosotros del verbo desilusionar.

desilusionar

Y todos nos estábamos desilusionando porque habíamos esperado durante semanas, y realmente no había entrado nadie.
And everybody was becoming very discouraged because it was weeks and weeks that we waited, really, where nobody came in.
Palabra del día
el villancico