French phrase
J'ai une question sur ~.
Meaning
I have a question about ___.
When to use it
A neutral, polite way to raise a question about a topic. Common in administrative or academic situations.
Example dialogue
J'ai une question sur les formalités d'inscription.
I have a question about the enrollment procedures.
Bien sûr, de quoi s'agit-il ?
Of course, what is it about?