saw nothing
Marie n'a rien vu.
Marie didn’t see anything.
She didn't see anything.
Tom n'a rien vu.
Tom didn't see anything.
He didn't see anything.
On a regardé par la fenêtre, mais on n'a rien vu.
We looked out the window, but we didn’t see anything.
Personne n'a rien vu ni entendu.
No one saw or heard anything.
Mary dit qu'elle n'a rien vu.
Mary says she didn't see anything.