Question

You should look at a copy someday

Simple subject
Simple predicate
Complete subject
Complete predicate

Answer 1

The simple subject is ‘you’ and, as there is no other descriptions relating to the subject, there is only a simple subject, not a complete subject. ‘Should look’ forms a simple predicate and ‘should look at a copy someday’ is a complete predicate.

Answer 2

The simple subject is ‘you’ and, as there is no other descriptions relating to the subject, there is only a simple subject, not a complete subject. ‘Should look’ forms a simple predicate and ‘should look at a copy someday’ is a complete predicate.