This Preferir conjugation exercise says: “Notice how for all three groups, the first vowel -e- in the stem becomes -ie- except for the nosotros and vosotros forms.”

How do you use Preferir in a sentence?

For instance:
Yo prefiero las camisas negras. — I prefer black shirts. ( Ella prefiere venir los lunes. — She prefers coming on Mondays. ( Yo preferiría no salir hoy. — I’d rather not go out today.Yo preferiría quedarme en hotel que alquilar un apartamento. — I’d rather stay in a hotel than rent an apartment.