In this episode, we will learn 2 common endings for verbs: "kureru" and "ageru". "Kureru" is mostly used when someone gives you something. "Ageru" is used mostly when you give something to someone. The word "kau" means "to buy", so "kattekureru" is often used when someone buys you something, and "katteageru" is often used when you buy something for someone.
So now learn more about this expressions from the video!