Some prepositional phrases are used to tell more about the action in a sentence.
Dad walked up the stairs. The phrase up the stairs tells more about how Dad walked.
My cat hid under the sofa. The phrase under the sofa tells more about how the cat hid.
The train chugged through the tunnel. The phrase through the tunnel tells more about how the train chugged.
You can use a prepositional phrase to tell more about the action in a sentence.
It’s your turn. Find the prepositional phrase that tells more about the action in this sentence. A bird is sitting on our fence. Did you figure it out? Good for you!