when should i use 'yeah' and 'yes'?

how best to train the pronunciation of English?

whath shape i use "thanks" e "thank you"?

olá alguém quer aprender um portugues?

I'm not able to use the right italki someone can help me?

Can someone help me please?

First notebook entry: Introducing myself português kannada inglês hi my name is Rafaela is I'm Brazilian student, was also swimming and rhythmic gymnastics.