DID did all his homework and gets to play. DIDN'T didn't do his homework and is made to stay indoors. DID shows DIDN'T how to set his priorities right and together they finish their homework, then go out to play. The Series Big Life Lessons for Little Kids CAN, CAN'T, COULD, COULDN'T, DID, DIDN'T, WAS, WASN'T, WILL and WON'T -- known collectively as the CAN DOs -- are all friends and they each have something to teach your child. From sharing and perseverance to doing homework and being a good sport, the CAN DOs help you as a parent lay the foundations for a well-rounded, confident and outgoing child.