The phrase "duly recognize" is correct and can be used in written English.
It is typically used to mean that something is being acknowledged or respected. For example, "The employee was duly recognized for her hard work and dedication to the company."
The plight of stateless Palestinian refugees is duly recognized.
Johns Hopkins should be duly recognized even while noting the emotional aspect of the runner-up team.
For example, British crystallographer Dorothy Crowfoot Hodgkin and American geneticist Barbara McClintock made important discoveries that were duly recognized by the Nobel committees.
"I am sure that when the political storms blow over," he wrote, "David's patriotic, unselfish and distinguished service to his country will be duly recognized".
The superiority of French cooking is duly recognized by the adoption of such culinary terms as boil, broil, fry, grill, roast, souse, and toast.
When Shiraz returns home with her story, the stepmother insists that her own child follow Shiraz's footsteps and be duly recognized.
But his spokesman denied a statement by Mr. Espada that the governor "duly recognized" him as the Senate president during a phone call.
Qin's success in this was duly recognized by other powers of the Chunqiu period, so that the two superpowers Chu and Jin had to grant Qin, along with Qi, the status of overlord in its own region.
The town law says its purpose lies "in strengthening and supporting all caring, committed and responsible family forms" and extending "certain societal privileges and benefits currently enjoyed by members of a duly recognized marital unit".
Turnout was lower than in 2011, when the country voted on the makeup of the Constituent Assembly charged with drafting its new constitution, but international observers praised the elections as free, fair, and transparent, and the Islamist party duly recognized the victor.
