Every sentence has a predicate. The predicate is the part of the sentence that tells what the subject of the sentence is or does. The predicate is usually the last part of the sentence.
Samantha climbed Mount Everest last year.
Subject: Samantha
Predicate: climbed Mount Everest last year.
The cows are grazing the grass.
Subject: cows
Predicate: are grazing the grass
The ducks are swimming together.
Subject: ducks
Predicate: are swimming together