I need to make sure the information is accurate. Checking the table of contents for the 11th edition is important. Are there new chapters or revised sections? For example, changes related to Portuguese used in Brazil versus Portugal, or updated conjugation rules?
Lastly, I should remind them that if they need specific chapters or examples, they can ask for more details. But I can't provide the actual PDF due to copyright, so pointing them to where to buy or find it is essential.
First, I should verify the details of this edition. José Maria Relvas is a well-known author in Portuguese grammar, so the book is a classic. The 11th edition would likely include updates reflecting modern linguistic changes. I should check if there's specific content added in the 11th edition that's different from previous ones.