Collocations for chew - verb

thoroughly, well
slowly, thoughtfully
up
Chew your food up thoroughly before you swallow it.

at
She was chewing at her lower lip.

on
The baby chewed on a piece of bread.

Chew is used with these nouns as the subject:
dog

Chew is used with these nouns as the object:
fingernail, food, lip, meat, mouthful, nail, tobacco