What is the role of a predicate in a sentence?

The role of a predicate in a sentence is to provide information about the subject, specifically by telling what the subject does or what the subject is like. In essence, the predicate expresses the action performed by the subject or the state of being of the subject. For example, in the sentence "The cat sleeps," "sleeps" is the predicate, indicating what the subject (the cat) is doing. Similarly, if the sentence were "The dog is playful," the predicate "is playful" describes what the subject (the dog) is like, conveying a characteristic of the subject. Understanding this function is crucial for identifying how components of a sentence work together to convey meaning.