"considers it key" is correct and usable in written English.
You can use it when you want to describe someone's opinion regarding the importance of something. For example: "The CEO considers it key to launch the new product before the competition."
AARP WINNERS It weighed in with an endorsment of the legislation at a critical time; Republicans considered it key to building momentum for the bill's passage.
INM, run by Gavin O'Reilly whose family controls 28% of the business, hit back saying that closing the newspapers would cost valuable cash while the sale of the South African business "is central to the current refinancing discussions and our banks have confirmed that they consider it key to any resolution".
We deliberately chose this strategy, since we consider it key not to replace therapeutic macro-hemodynamic strategies by micro-hemodynamic strategies, but to add micro-hemodynamic strategies in case of remaining microcirculatory abnormalities, despite optimal macro-hemodynamic resuscitation.
The gap appears to be in France, where the company hasn't made an acquisition (at least, none that I could find), although considers it a key market because of "compliance-heavy needs".
He said he considers it an "achievement" that key issues are still in the latest draft, such as responsibility for damages caused by future climate change, even though the final language remains unresolved.
The Institute of Medicine (IoM) - the health arm of the United States National Academy of Sciences - considers it one of the key elements of high quality care and describes it as "providing care that is respectful of and responsive to individual patient preferences, needs, and values, and ensures that patient values guide all clinical decisions [ 1]".
Clitoris is also Greek for the word key, "indicating that the ancient anatomists considered it the key" to female sexuality.
It was at that church that Gaudí developed structural concepts that he later used at Sagrada Familia, and many specialists consider it his key work.
"The board of directors and I consider it a key responsibility to protect the ethos and spirit of the club," Hill-Wood said.
It's intriguing to hear of General Westmoreland's personal interest in this "reconnaissance," but you never explain what you found or why he considered it "the key to our war effort".
