Formal or informal?
Hi, I have a quick question. Do you learn formal or informal phrases if you're learing Korean here on Duolingo?
Yes! The course starts with formal language then at about a third through the course it will introduce you to the Polite language. When you're about halfway through the course you'll learn the casual and written language.
Good luck with learning!
I learn both but most of the time I think it is safest to use the low formal types with 요 at the end, since you cant have a close relationship with someone but a high respect way might sound weird if the person isnt a boss or sth :)