The key word in the predicate is the VERB.
Burt works at the park.
The VERB tells us what the subject of the sentence is, has, does, or feels.
What the sentence is about.
He trims the trees, waters the flowers, and empties the trash.
What the subject is doing.
The woman is running and listening to her music.
He loves his job and wakes up each morning ready to work.
She likes the migrating birds best.
The gardener feeds the ducks.
The lily pond smells rotten
Linking
Appears
Becomes
Feels
Looks
Seems
Tastes
Smells
Sounds
Am
Is
Are
Was
Were
Be
Being
Been
Burt is the gardener's assistant.
The squirrel smells its food.
He seems afraid of the swans and becomes very pale when he is near them.
Action