Hello everybody! I've been learning Korean on my own so I have no one to ask this. I hope somebody can help me There's this thing I've been reading a lot. Certain syllables, like 현, 형, 석, when romanized, they have the eo replaced with u: 현 Hyeon / Hyun 형 Hyeong / Hyung 석 Seok / Suk And there's also this one: 현대 Hyeondae / Hyundai ? I wanted to know why this happened, because I don't have any clue Thank you very much!