I haven't seen
No he visto ninguna de sus obras.
I haven't seen any of his works.
I've never seen a giraffe.
Quince nietos que no he visto nunca.
Fifteen grandchildren I have never seen.
— Fresas salvajes (1957)
I haven't seen the accident.
Yo no he visto en mi vida un submarino amarillo.
I've never seen a yellow submarine in my life.
No he visto una chica en seis meses.
I haven't seen a girl in six months.