안녕하세요 (annyeonghaseyo) = Hello [polite]

안녕 (annyeong) = Hi

안녕히 계세요 (anyeonghi gyeseyo) = Bye [when you're leaving]

안녕히 가세요 (annyeonghi gaseyo) = Bye [when the other person in leaving]

여보세요 (yeoboseyo) = Hello [only say this when you pick up someone's call .]

어서 오세요 (eoseo oseyo) = Welcome

네 / 예 (ne / ye) = Yes

아니오 / 아니 (aniyo / ani) = No

고맙습니다 / 감사합니다 (gomapseumnida / gamsahamnida) = Thank you [polite]

고마워 (gomawo) = Thanks

천만에요 (cheonmaneyo) = You're welcome

생일 축하해요 (saengil chukhahaeyo) = Happy Birthday

미안합니다 / 죄송합니다 (mianhamnida / joesonghamnida) = I'm sorry [polite]

미안 (mian) = Sorry

괜찮습니다 / 괜찮아요 (gwaenchanseumnida / gwaenchanayo) = It's all right

실례합니다 (sillyehamnida) = Excuse me [polite]

NOTE : ㅂ is sometimes pronounced as "m" . ㅎ is silent if it's at the end of the word .

Ok guys~ We're done . I'll be giving more next chapter ^_^