Here are some words and phrases that are useful in every day life.
KOREAN WORDS -- ENGLISH WORDS
ye -- Yes
an-ni-o -- No
an nyong ha sye yo? -- Hello, How are you?( note: this can also be used in reply)
an nyong hi - ka sye yo -- Good Bye
k wen chah nah yo -- Its ok, Its fine
ottok'ke ch nae sye yo? -- How are you?
chal chi nae yo -- Fine (in reply to "ottok'ke ch nae sye yo?")
kam sa ham ni da -- Thank you (used in a formal way)
ko map sum ni da -- Thank you (used in a less formal way)
choe song ham ni da -- Sorry (used with more emphasis, weight)
mian ham ni da -- Sorry (used with less emphasis)