2 Bishops and Knight against Queen is an interesting fight: where the queen is unsually viewed as supremely powerful (and from a purely math standpoint, the material balance is there), the 3 minor pieces are most of the time superior to the Queen.
Below is a list of studies that will excerce your skills and uncover some interesting abilities of my favorite trio. Most of those patterns used in these studies are omnipresent in regular games.
A special mention of Henri Rinck (composer of three studies below) who was one of the greatest composer of all time
Enjoy!