Why would you pay for day care for an adult who is not disabled?
In any case, you can't claim the child and dependent care credit for an adult unless they lived in your home the entire year, they were disabled (unable to perform gainful work due to a permanent condition), and you needed to pay for day care so you could go to work. (Note that because of the focus on the ability to perform work for money, many people with medically recognized disabilities are still not "disabled" for tax purposes. For income tax, disabled means "unable to work for money" due to a permanent condition.)
