i will off my duty today~we can have a chat if we have free time~88

i will off my duty today~we can have a chat if we have free time~88
请问下面的英文是什么意思?
i will off my duty today
we can have a chat if we have free time
I understand China very much.Only this group of yours likes the S.Korean person who like this
haven't you learnd english?haven't you learnd english in college or your schools?if your english is very good,i think you can learn korean very easy~It needs the talent to study languages,This is far from being enough if you just like it
It is good that you can learn it well?
I advise that you can study English first ,because English is just a tool in our working life,we need the tools and we can learn more things well