Se o monstro tivesse a chave, abria a porta.If the monster had the key, he would open the door.Breakdown of Se o monstro tivesse a chave, abria a porta.a chavethe keyterto haveabrirto opena portathe doorElon.io is an online learning platformWe have an entire course teaching Portuguese (Portugal) grammar and vocabulary.Start learning Portuguese (Portugal) now