Learn Spanish (Latin America): El niño olvida su gorra, pero nosotros llevamos la nuestra. - The boy forgets his cap, but we take ours.

Possessive pronouns like la nuestra (ours) have to match the gender and number of the thing they are replacing, not the people who own it. Even though 'we' might be a group of men, the pronoun is replacing la gorra (the cap), which is a feminine word. So, it must be la nuestra.

Why does 'his cap' use just su, but 'ours' uses la nuestra?

Su is a possessive adjective that goes right next to the noun (su gorra). La nuestra is a possessive pronoun that completely replaces the noun so we do not have to say gorra again. In Spanish, these stand-alone possessive pronouns almost always need a definite article (el, la, los, or las) in front of them.

Why use llevamos for 'we take' here instead of tomamos?

Llevar means to take, bring, or carry something from one place to another, like bringing your cap with you. Tomar means to physically grab something with your hands, to take a vehicle, or to drink.

Could we drop nosotros and just say pero llevamos la nuestra?