None of these are simple, especially if the problem occurs regularly.
Later it turns out he is a police officer and occurs regularly in the series.
The word does occur regularly in secular works from this period.
Snow is common in winter and regularly occurs throughout the year.
Ask yourself: did conflict regularly occur in certain areas - at the kitchen table for example?
The plaza is also home to regularly occurring political events.
It is a regularly occurring and official count of a particular population.
Political violence has occurred regularly throughout its history, leading to government instability.
"Events like that occur regularly on both sides of the Atlantic."
I told her that they occurred regularly in our villages and towns.