assumir responsabilidade

You use it just like a regular verb. You can assumir the responsibility for a project, a mistake, or even a pet. Usually, you follow the phrase with the preposition por (for). For example, Eu assumo a responsabilidade por isso. It is a strong statement. Use it when you want to show you are a reliable person.

Use it in your professional life during meetings. It works perfectly when a project succeeds or fails. Use it in your personal life when you forget to do the dishes. It is great for serious conversations with a partner. If you break something at a friend's house, this phrase saves your reputation. It shows you have character.

Do not use it for tiny, accidental things like sneezing. That would be weirdly dramatic. Avoid it in very high-energy slang environments where it might sound too stiff. If someone asks 'Who ate the last brigadeiro?', saying Eu assumo a responsabilidade sounds like a court hearing. Just say Fui eu (It was me) instead. Keep it for things that actually matter.

In Brazil and Portugal, being 'responsável' is a highly valued trait in a friend. There is a cultural push toward 'jeitinho' (finding a way), but assumir responsabilidade is the 'adult' counter-balance. It is often seen as a sign of leadership. Historically, it carries a weight of honor. People respect someone who doesn't hide behind others when things go south.

You might hear chamar a responsabilidade para si. This means 'to pull the responsibility to oneself'. It is a bit more active and heroic. There is also dar a cara a tapa. This is a more colorful way of saying you are ready to be criticized for your actions. If you want to be simpler, just use se responsabilizar.