Greetings

 안녕하세요 (annyeonghaseyo) - Hello/Hi (formal)

안녕 (annyeong) - Hello/Hi (informal)

만나서 반가워요 (mannaseo bangawoyo) - Nice to meet you (formal)

만나서 반가워 (mannaseo bangawo) - Nice to meet you (informal)

안녕히 계세요 (annyeonghi gyeseyo) - Goodbye (formal, when someone is staying)

안녕히 가세요 (annyeonghi gaseyo) - Goodbye (formal, when someone is leaving)

잘 가 (jal ga) - Goodbye (informal, when someone is leaving)

안녕히 (annyeonghi) - Goodbye (informal)

좋은 하루 되세요 (joeun haru doeseyo) - Have a good day (formal)

좋은 하루 되 (joeun haru doe) - Have a good day (informal)

잘 지내세요 (jal jinaeseyo) - How have you been? (formal)

잘 지내 (jal jinae) - How have you been? (informal)

감사합니다 (gamsahamnida) - Thank you (formal)

고맙습니다 (gomapseumnida) - Thank you (formal)

고마워요 (gomawoyo) - Thank you (informal)

네 (ne) - Yes

아니요 (aniyo) - No

실례합니다 (sillyehamnida) - Excuse me (formal)

실례해요 (sillyehaeyo) - Excuse me (informal)

These are some common greetings and phrases in the Korean language. Remember to use the appropriate level of formality based on the situation and the person you are speaking to. Koreans value respect and politeness, so using the formal versions of greetings is recommended when interacting with older or more senior individuals. Practice these greetings and phrases, and you'll be well on your way to engaging in conversations with native Korean speakers.