Learn Spanish (Latin America): Los días son largos aquí.

Even though it ends in '-a', the word for day (el día) is a masculine noun. It is one of the most common exceptions to the gender rules in Spanish! Because the noun is masculine and plural (los días), the adjective describing it must match perfectly: largos.

Wait, doesn't largos mean 'large'?

It looks like it, but largo is a 'false friend'—a word that looks like an English word but means something completely different. Largo actually means 'long'. If you want to say 'large' or 'big' in Spanish, you would use the word grande.

Why do we use son instead of están?

We use son (from the verb ser) because we are describing a fundamental characteristic or fact about the days here. You generally use ser for descriptions and traits, whereas estar is used for temporary states, conditions, or physical locations.

Why is there an accent mark on the 'i' in días?

The accent mark tells you to put the stress on the 'i' and breaks up the vowels into two separate syllables (DEE-ahs). Without the accent mark, the 'i' and the 'a' would blend together into a single syllable (DYAS).