equivocasen
Imperfecto de subjuntivo para el sujetoellos/ellas/ustedesdel verboequivocar.

equivocar

Así pues, es normal que se equivocasen.
So, it was all right that they went wrong.
Muchos habíamos mirado temerosos la fecha, ya que las previsiones meteorológicas pronosticaban tormenta, y rezábamos porque se equivocasen.
Many of us were aware of the weather forecast for the day, which said there would be a storm, and we were praying for it not to happen.
Palabra del día
el portero