How do you say in Brazilian Will marry me?

There are a few ways to say "Will you marry me?" in Brazilian Portuguese, depending on the level of formality and the desired tone:

Formal:

* Você quer casar comigo? (Formal, literal translation)

* Deseja se casar comigo? (More formal, using "desejar" which means "to wish")

Informal:

* Quer casar comigo? (Most common, informal, literally "Do you want to marry me?")

* Casa comigo? (Very informal, literally "Marry me?")

Romantic:

* Você aceita se casar comigo? (Formal, means "Will you accept to marry me?")

* Quer ser minha esposa/meu marido? (Means "Do you want to be my wife/husband?")

Remember to choose the option that best suits your relationship and the situation. You can also use a phrase like "Eu te amo muito e quero passar o resto da minha vida com você" ("I love you very much and want to spend the rest of my life with you") to express your feelings before asking the question.