I need to buy
Necesito comprar alcohol para la fiesta.
I need to buy alcohol for the party.
Necesito comprar unos materiales escolares.
I need to buy some school supplies.
I need to buy stamps.
Necesito comprar algo en la tienda en el camino de vuelta.
I need to buy something at the store on the way back.
Necesito comprar una espátula.
I need to buy a spatula.
I need to buy food.
Aún tengo muchas cosas que necesito comprar.
I still have many things I need to buy.
Necesito comprar alguna medicina contra las pulgas para mi perro.
I need to buy some flea medicine for my dog.
Aún necesito comprar algo de pan.
I still need to buy some bread.