Breakdown of Nós queremos visitar a biblioteca às três.
nós
we
três
three
às
at the (fem. pl.) / to the (fem. pl.)
a biblioteca
the library
Questions & Answers about Nós queremos visitar a biblioteca às três.
Why is "visitar" not changed to match "we"?
What does the accent on "às" mean in "às três"?
The word às is a combination of the preposition a (at) and the plural article as (the). When telling time, Portuguese literally says "at the three [hours]". The backward-pointing accent simply shows that these two words have been squished together!
Where is the word for "o'clock"?
Just like in English, you can leave out the word for "hours" (horas) when the meaning is obvious. Saying às três is the natural way to say "at three". If you wanted to be very specific, you could say às três horas.
Could I leave out the word "Nós" at the start?
Yes! Because queremos means exactly "we want" and nothing else, the word Nós (we) is optional. You could simply say Queremos visitar a biblioteca às três.