The man is always poking about in the office, and that is a bad habit.

I've been making (some) inquiries (ie trying to find out) about it.

I'd like to ask you about something.

We're not here about a patient.

My uncle lives in Beijing and he lives very close to the theatre. I`ll telephone him and ask him to go there to inquire about it. You`d better have breakfast now and I`ll meet you later.