"Eu não trabalho às segundas-feiras."

Translation: I do not work on Mondays.

[AsaCross16]

LUCKY!!!!!

[rswainy]

Difference between nas and as...?

[Paulenrique]

First... "nas" sounds more natural here. Nas = in, on, at the; às = in, on, at, to the... Basically... we need much room to discuss about it, but it is a question of prepositions that will become clearer over time...

[ubuzen]

Is it more common to use "nas" when the preceding word ends in a vowel? I'm thinking of the way English uses "an" when the following word starts with a vowel ...

[DavidWinlo]

This hopefully is a simpler question (though I look forward to learning the answers to the longer one) - is there a difference in pronunciation of á and à?

[Paulenrique]

Actually, some people use to pronounce "à" like "double a". However, the accent shows it was linked, so there is no need to pronounce it like two a's.

Há = a = à = á (same sound)

The point is that when you have "á", it is the stressed syllable of a sentece:

BÁR - ba - ra

ÁR - vo -re

[y0rkshire]

Is "nas segundas feiras" acceptable? It is certainly used in continental Portugal.

[Emma89391]

Why is 'às' used? 'às' is 'a' + 'as', right? But where is that first 'a' coming from?

[brom4880]

Why can "Mondays" be written as "as segundas-feiras" and in other places, for example, as "nas Segundas." Why do you drop the "feiras"?

[Paulenrique]

"feiras" is optional.

[Richard266241]

Eu sou Garfield, claro que não gosto de segundas-feiras.

[jespinoza81]

What's the difference between às and as?

[Ayanna271017]

When you add the accent it becomes a conjunction. às = a + as (to the, at the, on the, etc.)