Here are a couple of great videos I found with some simple phrases, some of which are explained at varying levels of politeness. A great way to get started (with translations and romanisations)….
안녕하세요? Hello!
안녕하십니까? Hello! (very formal)
안녕! Hi! (very informal)
안녕히 계세요. Stay well! (Goodbye!)
안녕히 계십시오! Stay well! (Goodbye!) Very formal
안녕히 가세요. Go in peace! (Goodbye!)
안녕히 가십시오! Go in peace (Goodbye!) Very formal
잘 있어! Stay well! (very informal)
여보세요? Hello (on the telephone, also works in dark places)
다녀올께요! I’ll be back!
다녀왔습니다! I’m back!
갔다올께요! I’ll be right back!
만나서 반갑습니다. Nice to meet you.
반갑습니다. Nice to meet you.
처음 뵙겠습니다. Pleased to make your acquaintance.
배 고파요. I’m hungry.
배 불러요. I’m full.
잘 먹겠습니다. I will eat well (said before meals).
발 먹었습니다. I’ve eaten well (said after meals).
예 OR 네 OR 응 mean YES
아니오 in a sentence is NO
아니에요 is a polite way to say NO
고맙습니다 is a informal way to say THANK YOU
감사합니다 is a formal way to say THANK YOU
실례합니다 is EXCUSE ME
죄송합니다 means SORRY formally
미안해요 means SORRY informally
괜찮아요 means alright or okay.
괜찮아요? means is it okay? are you okay?
천만에요 means it’s nothing.
앉으세요! Please sit!
수고하십니다! You’re working very hard!!
수고하세요! Keep working hard!!
수고하셨어요! Thanks for helping me at work!
그래요? Really?
그래요. Okay. Sure
천천히 말씀해 주세요. Please speak more slowly.
크게 말씀해 주세요. Please speak louder.
영어 할 줄 아세요? Do you speak English?
저는 한국말을 못해요. I can’t speak Korean.
다시 말씀해 주세요? Can you repeat that?
나는 못알아들어요. I don’t understand.
나는 한국말을 조금 알아들어요. I understand a little
