Formal:
* Com licença: This is the most formal and polite way to say "excuse me".
* Peço desculpa: This translates to "I apologize". You can use this if you've done something wrong or need to interrupt someone.
Informal:
* Desculpe: This is a more informal version of "excuse me". You can use this with friends and family.
* Com licença: This is also used informally, but it is still polite.
* Perdão: This translates to "pardon me" or "forgive me". You can use this if you've accidentally bumped into someone or if you didn't hear something.
Other:
* Com licença, por favor: This is a polite way to ask for permission to pass.
* Pode me ajudar? This translates to "can you help me?" You can use this if you need assistance.
The best way to say "excuse me" in Portuguese will depend on the situation and your relationship with the person you're speaking to.