ترجمه - انگلیسی-پرتغالی برزیل - Are you free around 10 am on Friday morning?

The second sentence is in unnatural/mistaken Japanese, but the meaning seems to be:
"I want practice my spoken Japanese with you at 10 am on Friday if you're free at that time, because I am studying for the Japanese language proficiency test (Nihongo Nôryoku Shiken)."