"Non ha visto nessuno."

Translation: He did not see anybody.

[FrancescoN41]

Why not : nobody saw it ?

[Marninger]

Non = not
ha visto = he/she/it did see
nessuno = no one / nobody

Not, he/she/it did see, no one ~
He did not see one = He did see nobody = He did not see anybody

[jcj5000]

why not he has seen nobody?

[shortcurtis]

She has seen no one?

[marco2w]

"He did not see anyone"was marked incorrect, but 'uno' means one, so 'anyone', which is a synonym of anybody, should be accepted.

[Flysalot]

I agree. I hope you reported it

[Vernon397]

Shouldn't the translation be 'He HAS not seeN anybody' ('Non HA visTo nessuno')

[tralalalex]

In Italian the passato prossimo is used to describe actions that already came to an end and which took place not that long ago.

[DanielMaff2]

Why he didn t see anyone is ok and it didn t see anyone ia wrong?

[Flysalot]

He hasn't seen anyone is also accepted 11/Jan/2019

[sumemon]

How does the speaker know that?