Usages of do
O meu irmão foi ao quiosque comprar um envelope, e eu fiquei em casa a dobrar o folheto do museu.
My brother went to the kiosk to buy an envelope, and I stayed at home folding the museum leaflet.
Na reunião, o diretor falou do novo projeto.
At the meeting, the director spoke about the new project.
Elon.io is an online learning platform
We have an entire course teaching Portuguese grammar and vocabulary.