What is a subject and predicate plz define and use examples plz

The parts of the sentence are a set of terms for describing how people construct sentences from smaller pieces. There is not a direct correspondence between the parts of the sentence and the parts of speech -- the subject of a sentence, for example, could be a noun, a pronoun, or even an entire phrase or clause. Like the parts of speech, however, the parts of the sentence form part of the basic vocabulary of grammar, and it is important that you take some time to learn and understand them.

Explanation:

The complete subject tells whom or what the sentence is about. For example; The house, The red car, or The great teacher. The complete predicate tells what the subject is or does. For example; (The house) is white, (The red car) is fast, or (The great teacher) likes students.

A subject tells who or what the sentence is about

a predicate tells what the subject is or does

Explanation:

example:

Mr. Rick took a walk.

Rick is a subject

took a walk is a predicate

example:

The kids are eating lunch

Kids is the subject

are eating lunch is the predicate

b. the colonies must seek protection from other nations.