Because this is very formal, there are not that many occasions where this is necessary to use. However, you should use this when:
You find yourself in a very formal situation
You sing the ‘happy birthday’ song in Korean!
This is all you need to know and if you want to learn more phrases like this one, please take a look at our Everyday Korean Archive. If you found this lesson useful, please like or share! And if you have any questions or something else you want to say, please leave a comment and we will do our best to help you out!