compré un

I bought a

→ comprar
phrase Extremely common #389
I bought a Uses the preterite form compré of comprar, so it refers to a completed past action. Un is the masculine singular indefinite article, used before most masculine singular nouns.
SP: Compré un libro para mi hermano.
EN: I bought a book for my brother.

Compré un marco de cuero para el retrato.

I bought a leather frame for the portrait.

Compré un cactus.

I bought a cactus.

Compré un coche eléctrico.

I bought an electric car.

Compré un Picasso.

I bought a Picasso.

Compré un sofisticado sistema de seguridad para mi casa.

I bought a sophisticated security system for my house.

Compré un jarrón blanco para poner en la entrada de la casa.

I bought a white vase to put in the entrance of the house.

Compré un deportivo rojo.

I bought a red sports car.

Compré un florero de cristal.

I bought a glass vase.

Compré un sillón, pero todavía no sé dónde lo voy a poner.

I bought an armchair, but I still don’t know where I’m going to put it.

Compré un telescopio y un libro de astronomía.

I bought a telescope and an astronomy book.