non ha mangiato niente

hasn't eaten anything

→ non
phrase Rare #27,215
hasn't eaten anything The form can change depending on the subject and tense: for example, non ho mangiato niente means “I didn't eat anything,” while non avevo mangiato niente means “I hadn't eaten anything.” With non, niente means “anything” in negative sentences.
IT: Marta non ha mangiato niente a colazione.
EN: Marta hasn't eaten anything for breakfast.

Tom non ha mangiato niente oggi.

Tom hasn't eaten anything today.

Non ha mangiato niente?

Didn't he/she eat anything?

Lei non ha mangiato niente.

She didn't eat anything.

Non gli è piaciuto, non ha mangiato niente!

He didn't like it, he didn't eat anything!

— È arrivata mia figlia! (2015)

Tom non ha mangiato niente.

Tom didn't eat anything.

Non ha mangiato niente ieri.

They didn't eat anything yesterday.