suyo

Ese coche es suyo, no mío.

That car is his, not mine.

La culpa no es suya, sino del jefe.

The fault is not hers, but the boss's.

Encontré unas llaves; ¿seran suyas, señora?

I found some keys; could they be yours, madam?

Mis hijos son amigos suyos desde la infancia.

My children have been friends of his since childhood.

Esa idea fue suya, no se la quites.

That idea was hers, do not take it from her.