What do you want to do in the future?
-> I want to be a teacher in the future
Lớn lơn bạn muốn làm nghề gì
mình muốn trở thành ca sĩ
What + do /does + S + want to be?
S + want (s) a/an + nghề nghiệp.
Eg: What do you want to be(in the future)?
I want to be a teacher.