Formal:
* Terminado: This literally means "finished" and is the most formal option.
* Concluído: Similar to "finished," this is another formal way to say "all done."
Informal:
* Pronto: This is the most common way to say "all done" in informal settings. It literally means "ready."
* Acabei: This translates to "I finished" and is a more direct way to say "all done."
* Já está: This translates to "it's already done" and is a colloquial way to say "all done."
Example sentences:
* Formal: "O trabalho está terminado." (The work is finished.)
* Informal: "Pronto, terminei de comer." (I'm done eating.)
You can also use "tudo pronto" (everything is ready) to indicate that all is done and ready for the next step.
The best way to choose the right phrase depends on the context and the level of formality required.