Learn English – Correct preposition to go with “inquiry”


I'm trying to figure out which preposition to use together with "inquiry". For example, take the following sentence:

I have asked Bob, but he doesn't know.

Now I'd like to express the same using "inquiry":

A previous inquiry [insert correct preposition here] Bob did not yield any new insights.

What is the correct choice? If the object was an institution I'd probably use "at", but that doesn't sound right for a person.

Best Answer

You can inquire with or of (someone), at (a place), or into (something), so:

A previous inquiry with / of Bob did not yield any new insights.