The effects of the drug have never been thoroughly 'studied'.
He viewed us with a 'studied' indifference.
The proposal was 'studied' in great detail.
(..) as if they have feelings... ... can think! The wand chooses the wizard, Mr. Potter. That much has always been clear to those of us who've studied wandlore. And, what do you know about the Deathly Hallows? It is rumored there are three. The Elder Wand, the Cloak of Invisibility, Together, (..)2011 Harry Potter and the Deathly Hallows: Part 2