Subject - Tells the listener and the reader whom the sentence is about. The subject is that part of the sentence which names a person, thing, or Idea. For eg: the teacher, the master, the principal, the dog, flowers, the sun, etc. Every complete subject contains a simple subject, which is a noun or pronoun and it is the most important word in a sentence.
For example- We listened to the music at the beach, the newspaper Article, Apple and Mango are my Favorite fruits.
Predicate - Is that part of a sentence that tells about the sentence. This is a kind of Verb that describes the action or condition of a sentence. For Example- Always support each other, rarely complains about you, etc.
There are more examples of Predicate i.e, Teaches well, bright student eats food, etc.
Subject and Predicate always have a complete sentence
The Girl sings well- The Girl is a subject In a sentence and sings well is a Predicate.