Informal vs Formal | Live Class Abridged

This past Sunday I taught about using the ~니다/~니까 forms used in Formal Speech, and compared them to the standard ~요 form. I taught when and how to use each one of them, and how both of them can also be mixed in the same sentence. The full live stream was around an hour but I managed to condense the most essential parts to just 17 minute here.