말이다, (이)야말로 "What I'm Saying" | Live Class Abridged

For those of you who missed this Sunday's live stream, we learned about several forms related to the noun 말, including how to use 말 in sentences.

This included 말이다 (말이에요, 말이야, 말입니다), 지 말입니다, and (이)야말로.