A Couple of towns in Rio Grande do Sul (but in the rest of the state speakers might or might not utilize it in additional formal speech), primarily near the border with Uruguay, have a slightly diverse pronunciation in certain occasions (tu vieste will become tu viesse), that's also existing https://bravelight.net/userinfo.php?action=view&userinfo=octavio.bowe_451692&mod=space&com=profile&from=space