finished doing
Terminei de ler o livro que estava lendo.
I finished reading the book I was reading.
I haven't finished doing that.
Eu ainda não terminei de tomar café da manhã.
I haven't finished breakfast yet.
I finished studying.
Eu ainda não terminei de escrever o relatório.
I haven't finished writing the report yet.
I finished eating.
I've already finished studying.
Terminei de ler o livro que me emprestou.
I finished reading the book you lent me.
Não terminei de ler esse livro.
I haven't finished reading this book.