"make enquiry about" is a grammatically correct phrase to use in written English.
It means to ask or inquire about something. Example: I would like to make an enquiry about the availability of the apartment for rent. In this sentence, the speaker is requesting information about the availability of an apartment for rent. They are using the phrase "make an enquiry about" to indicate the purpose of their communication.
McVeigh used the phone card to make enquiries about where he might order a Ryder truck.
Mata joined the Red Devils for £37m in January 2014 under ex-boss David Moyes and, according to the Daily Mail, could be set for a return to Spain after the Catalan giants proceeded to make enquiries about his availability.
Jenkins has also admitted Real Sociedad have made enquiries about the Spanish manager.
Arsenal as well as Tottenham made enquiries about acquiring the services of the Spanish international in January but Barcelona were reluctant to sell at that time.
He added: "As you'd expect, several people have got in touch with us since our appointment as administrators and made enquiries about buying the club.
The club have made enquiries about Rafael Benitez taking charge until the end of the season but were unable to come to any agreement with the former Liverpool manager.
"I made enquiries about getting a normal current account without an overdraft or credit card, but I was turned down by every bank I went to," she said.
Liverpool have made enquiries about a deal this month although reports in Serbia yesterday that Krasic has signed a pre-agreement to join them do not tally with Fifa rules governing transfers.
The club has made enquiries about Celtic's 33-year-old Chris Sutton, who is available for £300,000 as he is out of contract this summer and has also attracted interest from Everton.
"As part of their investigations, the regulatory authorities made enquiries about certain projects" of Wison and its subsidiaries, and have "taken books and records and frozen certain bank accounts," the company said.
