Within a year, if you put in two to three hours a week, you can become conversant in fundamental terms. It will, in fact, rely on how committed you are.
Unlike Rio de Janeiro and São Paulo, there are various secure regions in Brazil; therefore, the best thing to do is discover hidden gems such as Joao Pessoa. While in the city, we felt really safe, but it's always advisable to stay away from dangerous places and ostentatious jewelry.