Regarding

adverb used to indicate movement or action in a particular direction or manner

preposition used to indicate the object or topic of a verb, or the point in time or space at which an event occurs

• I would like to inquire about the status of the project.
• Can you tell me more about what happened?
• I heard some juicy gossip about that party.
• She had a lot on her mind, carrying thoughts about her past.