Jump to the verb tense you just learned in class or on Duolingo. The book is modular (you do not need to go in order).
I know the temptation. You type "Gramatica Ativa 1 pdf gratis" into Google. You find a random website or a Slavic file-sharing forum. gramatica ativa 1 pdf
For about €19, buy the physical book. Lidel provides a code or a link to download the audio tracks (the listening comprehension exercises) for free. Jump to the verb tense you just learned
This iconic green workbook is the gold standard for beginners (A1/A2 level). Unlike many textbooks that just give you long lists of rules, Gramática Ativa teaches you through You type "Gramatica Ativa 1 pdf gratis" into Google
If you have the PDF, print the exercise page. If you cannot print, write your answers in a notebook. Typing over a PDF doesn't stick in your memory.
In this post, I will explain exactly what this book is, why it works, where you can legally get a digital copy, and how to use it to actually speak Portuguese.
But here is the problem most students face: finding the online is difficult. Many links are broken, malicious, or simply illegal.