I want to learn other languages.

I want to speak English, Japanese, and Maori fluently!
And Japanese, Maori!!!
Who could can teach me?
If you teach me these laugages I can help you to learn Korean.:)

Angela's is also correct but here is another way to say that. Then main difference between her correction and mine is "I want to speak English, Japanese, and Maori fluently." I just wanted to show you a different way of writing it.

Your English is great just keep practicing! I would be happy to help you with your English and even happier if you could help me with my Korean!

I want to learn other languages

I want to speak English fluently.
And Also, Japanese and Maori as well!!!
Who could can teach me?
If you teach me these laugages, then I can help you to learn Korean.:)

Very good! I may be able to help you with your English if you would like. Good luck!