What is the subject and predicate of a sentence?

Think of it this way. The subject is the main actor in the sentence. It is the 'who' or the 'what' we are talking about. The predicate is the rest of the sentence. It explains what the subject is doing or what it is. The predicate always includes the verb. So, in “The sun shines brightly,” “The sun” is the subject. The predicate is “shines brightly.” It is the fundamental structure of how we build our thoughts.