"with concern that" is a correct and usable phrase in written English.
It is typically used to express worry or anxiety about a certain aspect or situation. Example: With concern that her flight might be delayed, she arrived at the airport three hours early.
He realizes with concern that it'll be the end of the boy.
Their teacher notes with concern that they are attracted to horror, perhaps because they can readily identify with it.
All winter afterward, the joy was shadowed with concern that Sox fans had lost what defined us.
One executive at a major investment bank remarked with concern that the average age at his firm was 32.
The parliamentary inquiry into Kids Company noted that with concern that even after his resignation, Yentob "still retains substantial responsibilities … and oversees substantial budgets" at the corporation.
Friends and readers have commented, with concern, that rest days are necessary for your body to recover and train more effectively.
Regional officials must deal with concerns that manifest themselves through local protests in ways that discourage the escalation of tensions.
The "golden years" come with concerns that can often lead to depression: financial worries in retirement, loss of independence, illness, fears of mortality.
"It was a very good exchange of ideas, with concerns that represent the very broad spectrum of our conference," Meadows said earlier this week, on television.
Ministers including Andrea Leadsom, Penny Mordaunt, Esther McVey and Michael Gove are among those with concerns that moves to solve the Irish border issue could tie the UK to the EU for the long term.
"They deal with concerns that are currently affecting influential constituents".
