Breakdown of A touca é obrigatória no spa, desde que vás à piscina.
ser
to be
em
in / on / at
a
to / at (direction)
ir
to go
Questions & Answers about A touca é obrigatória no spa, desde que vás à piscina.
Why is the verb form vás used instead of vais?
The phrase desde que means "provided that" or "as long as". It sets up a condition and always triggers the subjunctive mood. Since we are talking about a present or future possibility, we use the present subjunctive of ir (to go) for the tu (you) form, which is vás.
I learned chapéu for hat. When do I use touca?
Could I say para a piscina instead of à piscina?
You could, but the preposition a is much more natural here. In Portuguese, going somewhere with a implies a short visit with the intention of returning soon (like going to the pool to swim). Using para usually implies moving somewhere for a longer time. À is just the contraction of the preposition a and the feminine article a.