Translation of "to bite" into Portuguese

Don't go near the bulldog. You wouldn't want him to bite you.

Não se aproxime do buldogue. Não quereria que te morda.

When they fly into our bedroom at night, they prefer to bite my wife.

Quando eles voam à noite, para o nosso quarto preferem picar a minha mulher.

And he used to bite his fingernails, but then wait for it, now he doesn't anymore.

E ele roía as unhas, mas já se deixou disso.