was happening, used to happen
Solía pensar que todo sucedía por una razón.
I used to think everything happened for a reason.
Quiero decir, él estaba allí mientras sucedía.
I mean, he was there while it was happening.
— La historia de David Copperfield (2019)
Es decir, que todos estaban al tanto de lo que sucedía y de cómo sucedía.
In other words, everyone knew what was happening and how it was happening.
— Argentina 1985 (2022)