Replacing haver when it means "to exist" with ter ("to have"): Tem muito problema na cidade ("There are many difficulties in the city") is a lot more Regular in speech than Há muitos problemas na cidade. When you are crossing a land border and plan to return to Brazil (e.g. https://blakebusinessservices.com/userinfo.php?do=profile&username=jeanette-connely_451692&name=Your_Account&from=space&action=view