Questions & Answers about Jeg spørger, om han kommer i aften.
In this sentence, om introduces an indirect yes/no question:
- Jeg spørger, om han kommer i aften.
= I’m asking whether/if he is coming tonight.
So here om means “whether / if” in the sense of uncertainty about yes or no. It’s used after verbs like:
- spørge (to ask)
- vide (to know)
- tvivle på (to doubt)
- overveje (to consider)
Example:
- Jeg ved ikke, om han kommer.
I don’t know whether he is coming.