Usages of gapjagi
수업을 듣다가 갑자기 인터넷이 끊겼어요.sueobeul deutdaga gapjagi inteonesi kkeunhgyeosseoyo.
While attending the class, the internet suddenly got disconnected.
갑자기 비가 와요.gapjagi biga wayo.
It suddenly starts to rain.
Elon.io is an online learning platform
We have an entire course teaching Korean grammar and vocabulary.