was opening, used to open
La Srta. golpeó la puerta y él no abría.
The lady knocked on the door and he didn't open it.
Máquina que veía, la abría.
I’d open any machine I saw.
— 3 Idiots (2009)
El tío no abría la boca.
The guy wouldn't open his mouth.
Se abría paso entre la multitud.
He made his way through the crowd.