Learn Spanish (Latin America): Comemos torta en el cumpleaños.

In Spanish, the ending of the verb usually tells you who is doing the action. Comemos ends in -emos, which specifically means "we eat." Because of this, you don't need to include the pronoun nosotros (we) unless you want to add special emphasis.

Why does "cumpleaños" end in an "s" if it's talking about a single event?

Cumpleaños is a compound word made from cumple (completes) and años (years). Because it literally means "completes years," the s is built into the word permanently. You use el cumpleaños for one birthday and los cumpleaños for multiple birthdays.

I thought "cumpleaños" just meant "birthday". Why is it translated as "birthday party" here?

In Spanish, cumpleaños can refer to both the calendar date of your birth and the celebration itself. Here, saying en el cumpleaños naturally translates to "at the birthday party" because they are actively eating cake at an event.

Wait, doesn't "torta" mean sandwich?

It depends on where you are! In Mexico, a torta is indeed a type of sandwich, and they usually use pastel for cake. However, in most of South America, torta is the standard everyday word for "cake."