This is the 936th most frequent Portuguese word.
ocorrer
To happen or occur.
Here, 'ocorrer' is used as a synonym for 'to happen', indicating the time at which an event took place.
O acidente ocorreu pela manhã.
The accident occurred in the morning.
In this case, 'ocorrer' suggests the possibility of an event happening, conveying hypothetical situations.
Pode ocorrer um atraso na entrega.
A delay in the delivery may occur.
Here, 'ocorrer' is used to predict occurrences that are expected or anticipated during a context or situation.