The phrase "allow him to prepare" is correct and usable in written English.
You can use it when giving permission for someone to get ready or make arrangements for something.
Example: "Before the meeting starts, please allow him to prepare his presentation materials."
Alternatives: "let him get ready" or "permit him to make arrangements."
Folse persuaded Chase to allow him to prepare the meal for her.
Promised that the new textbooks would be available in August to allow him to prepare for the first day of school, Mr. Bassoff received none.
It is understood the 62-year-old, if under consideration, would want to take up the reins sooner rather than later to allow him to prepare properly for the January transfer window, when tweaks could be made to the squad.
England announced on Thursday morning, after the wash-out at Edgbaston had left them with an unassailable 2-0 lead in the series, that Swann has a sore elbow and will therefore be given an extra week's rest to allow him to prepare for the start of the Test series against South Africa in a fortnight.
Jersey's outgoing Roman Catholic Dean says retirement will allow him to prepare for the next chapter of his life - and his death.
This was Bolger's 13th win in the La Touche, and as so often in the past, he thanked the neighbours around his base in County Limerick for allowing him to prepare his horses over natural obstacles.
The Venezuelan president, Hugo Chavez, had advance warning of last month's coup attempt against him from the secretary general of Opec, Ali Rodriguez, allowing him to prepare an extraordinary plan which saved both his government and his life, an investigation has revealed.
Cook explained that Broad had preferred to miss the opener in Perth if it allowed him to prepare for Brisbane with consecutive fixtures against Australia A in Hobart and then the final warm-up game against a New South Wales Invitational XI in Sydney next week.
Williams' background in fight choreography, stemming from his role in Missing in Action 2: The Beginning (1985), allowed him to prepare for, and to help create, the character's actions scenes, including choreographing the character's brawl with Mitch Pileggi's character Walter Skinner in the episode "End Game".
The statement said that Mr. Hunnam's "immersive TV schedule," which includes a starring role on "Sons of Anarchy" on FX, would not allow him to "adequately prepare for the role of Christian Grey".
Wilson denied anything was significantly wrong with his elbow then — he said the Dodgers' season-opening trip to Australia didn't allow him to properly prepare for the season — and he continues to insist he is healthy now.
