A greeting used when meeting someone. What would you say for 'Hello'?

How do you say 'Thank you' to show your gratitude?

What do you say when you want to apologize or say 'I'm sorry'?

What do you say when you say 'Goodbye' to someone leaving?

What is a polite way to say 'Nice to meet you'?

What do Koreans say before and after having a meal?

How do you ask 'How have you been?' in Korean?

How do you say 'Good night' politely before going to bed?

What do you say to someone who is working hard, meaning 'Keep up the good work'?"

What do you say after finishing a meal to say 'Thank you for the food'?