Find the simple subject and the simple predicate in the sentence.

A small puppy just chewed on my new shoes.

Puppy is simple Subject

chewed is the simple predicate

Explanation:

To identify a simple subject in a sentence, question yourself who or what does the action in the sentence.

To identify the simple Predicate in a sentence, look for the main verb or verb phrase in the sentence that tells what the subject does.

In the above-said sentence Puppy is the Simple subject it does the action of chewing.

In the above-said sentence chewed is a man verb that the puppy (subject) does.