"freely use" is correct and usable in written English.
You can use it when indicating that something is available to use or use without any restrictions. For example: "The software comes with a lifetime license, so you can freely use it as long as necessary."
Why won't tech companies let us freely use terms that already enjoy wide circulation and legitimacy?
Even its champions who freely use the brain analogy do so with a sense of humility.
Mr. Kittle said contributing to a project where anyone can freely use the mapping data was important to him.
Living in the hotel, they can freely use its amenities, including the gym, valet parking and even room service.
Pride parades remain banned in Moscow, while opposition leaders freely use the Russian word for "faggot" in public.
American forces dominate the skies over Afghanistan, and we will use that dominance to make sure terrorists can no longer freely use Afghanistan as a base of operations".
Coaches caught up in the rush and heat of the moment freely use metaphor and hyperbole to convey feelings of joy and, in Jarvis's case on Saturday, anger.
Only thirty-one per cent of people who are online live in countries, like the U.S., where they can freely use the Internet.
Najat Vallaud-Belkacem, government spokeswoman and minister for women's rights, said: "The 343 salopes were asking to be able to freely use their body.
Under the new terms of service, Facebook has rights to freely use anything people add to the website, even if members have deleted material or closed accounts.
But, at the same time, "we have to keep our shipping lanes open, to continue to do commerce, and to freely use the Internet".
