araso, arata, arana
What is the different between:

araso
arata
arana

How and when can it be used?

Question

araso, arata, arana
What is the different between:

araso
arata
arana

How and when can it be used?

Answer

Maybe there're 알았어, 알았다, 알았나. 
알았어 - I got it./I understand.
알았다 - I got it. I knew it..
알았나 - You got it?/You understand? (It's like a question that is normally used in southern Korea - a regional dialect)

Answer

Can you type in Hangeul please?