진짜 - (Jinjja) Really. It is used to person whos younger than you.
진짜 예요 -(Jinjjayeyo) used to person whos older than U.
진짜 인니다-(Jinjja innida) most formal form of really.
아이구 (Aigoo)- omg or Oh dear!
-----
Just comment what you want to learn next! 고마워 !