A Few metropolitan areas in Rio Grande do Sul (but in the remainder of the state speakers might or might not use it in more official speech), largely close to the border with Uruguay, have a rather different pronunciation in a few instances (tu vieste gets to be tu viesse), https://brandwoot.com/userinfo.php?username=maura.higginbotham_451692&com=profile&do=profile&mod=space&action=view