Desculpe-me I'm sorry. com licença= Excuse me.

In english, when you dont understand what someone says, you say: "What?!" or, "Sorry?!" or "excuse me" In portuguese it doesnt happen. DESCULPE - you use it when you want apologize yourself >> I'm sorry; COM LICENÇA - It's like >> Excuse me.. For exemple: Excuse me, I want to walk in.

Desculpe - is more like "sorry" Com licença - is for when you want to go through and somebody is in your way, or when two people are talking and you have to interrupt...