Learn Spanish (Latin America): Visitamos la ciudad el martes y el miércoles. - We visit the city on Tuesday and Wednesday.

In Spanish, you don't use a preposition like "on" with days of the week. Instead, you use the masculine word for "the" (el). So, to say "on Tuesday", you actually say el martes (literally "the Tuesday").

Both martes and miércoles end in "s". Are they plural?

They are singular here! The Spanish days of the week from Monday to Friday naturally end in an "s" (lunes, martes, miércoles, jueves, viernes). You can tell they mean a single Tuesday and a single Wednesday in this sentence because they use the singular article el. If it meant "on Tuesdays" in general, it would be los martes.

Why is el repeated before miércoles? Could I just say el martes y miércoles?

While English speakers often say "on Tuesday and Wednesday," Spanish requires you to be more specific. You should repeat the article for each item in a list to sound natural and grammatically correct, which is why we say el martes y el miércoles.

How do we know it means "we visit" if the word nosotros (we) isn't in the sentence?