"enquire what" is a correct and usable phrase in written English.
You can use it when inquiring about a certain thing, or when interrogating someone about something specific and asking for more information. For example: "I started to enquire what kind of job the company was offering before I applied."
This alarming discovery prompted me to enquire what child protection training is mandatory for the judiciary.
Is it not Humphrys' job to pick apart such cliches and enquire what they actually mean?
No one troubled to enquire what constituted good design or indeed, more specifically, good British design.
Then I would enquire what their future plans were, and what they hoped to gain as a result of that success.
I assumed that the telly remote must have run out of batteries, but no, it was to give me a cup of tea and enquire what I was doing.
Rather than enquire what substances the chairman was on, Taylor accepted the outrageous challenge and met it in the space of six seasons, finishing second to Liverpool and defending his direct style against all-comers, as he continues to today: "If people think all we did was whack the ball and chase it, it must have been a very poor First Division!
I enquired what this meant.
To their bewilderment, slightly drunk chaps in green shirts kept weaving up to them and enquiring what exactly was making them so mad.
He was so enthusiastic about the novel that he then came to me enquiring what other books by Crichton he could read and what else I could recommend by other writers in a similar genre.
He recently joked that when he had told a movie executive that he was thinking of weaving two themes by Bach into a score, the man enquired what Bach's latest hit had been.
When I enquired what her real Christian name was, she glared and said, "Why are you presuming that my parents were Christians?" I told her I'd seen the photograph on the mantelpiece of her parents' wedding, which had been taken outside a church and been attended by a vicar holding a copy of the Old Testament.
