Expressing/accepting gratitude in different ways
감사합니다 is the most basic way foreigners can express their gratitude in Korean, but what if I want to say thank you in these other ways:

Thank you so much
I'm really thankful
You have my [eternal] gratitude
As usual, thank you
Thank you as always
Thank you for always...
Thank you for...

And what about "you're welcome"? What are the different ways of accepting gratitude?

Question

Expressing/accepting gratitude in different ways
감사합니다 is the most basic way foreigners can express their gratitude in Korean, but what if I want to say thank you in these other ways:

Thank you so much
I'm really thankful
You have my [eternal] gratitude
As usual, thank you
Thank you as always
Thank you for always...
Thank you for...

And what about "you're welcome"? What are the different ways of accepting gratitude?

Answer

Thank you
감사합니다.
감사드려요. 
다시 한 번 감사드려요. 
뭐라 감사해야 할지 모르겠어요.
신세졌어요. 
여러 가지로 신세를 졌습니다. 
고맙습니다 .
정말 고맙습니다.
고맙다.
고마워.
고마워요.
고마웠어.
고마웠어요.

You are welcome
천만에요
별말씀을요
그런 말씀 하지 마십시요.
당연한 일인걸요.
도움을 드릴 수 있어서 기쁩니다. 
제가 좋아서 한 거예요. 
과찬이세요.