Subject and Predicate are the most important part of a sentence.
What is a subject?
Subject is the main idea of the sentence.
It can be simple subject, Compound subject or a complex subject.
Simple subject:
It can be a Proper noun Like names of a person or a place like Rajasthan, Europe, Jones ETC.
It can be an Improper noun like city, girl, bus ETC.
Improper noun is also known as common noun.
It can also be a pronoun like it, he, she ETC.
It can also be an introgative subject such as What, which, Who, Where ETC.
Compound Subject:
It is a combination of 2 simple subjects.
Example:
Complex Subjects:
It is a group of things with a modifier.
The height of Mount Everest excited everyone!
Predicates:
Predicate is the job the subject is doing.
Simple predicate:
Predicate must contain a verb.
Example:
The dog barks.
In this sentence, dog is the subject and barks is the verb.
Compound predicate:
It is a combination of 2 verbs at the end of a sentence.
Example:
Ram and Rahim are singing and playing.
This sentence has 2 verbs like singing and playing.
So, it is a compound predicate.
Complex predicate:
It is everything except the subject!
Example:
Chaaru is doing her homework.
In this sentence, Chaaru is the subject and is doing her homework is complex predicate.