The tern subject is defined in a good manner to understand.

2. Subject, Predicate and Object
 A sentence is a combination of words that gives a complete meaning or thought. A sentence
has the following three parts.
1. Subject
2. Predicate
3. Object
Subject
 Subject is a noun or a pronoun used in a sentence.
 It is an agent in the sentence which does some action in the sentence.
 Read the following examples.
He is writing a poem.
She is laughing.
They are playing football.
David works in a factory.
 It can be seen in the following examples, that the subjects (he, she, they, David) are
performing certain action.
 In some sentences, the subject may not necessarily perform some task.
 Hence, subject can also be defined as the noun or pronoun used in a sentence about which
some thing is being told in the sentence.
 This definition of subject applies to sentence having static verbs.
 Read the following examples.
He is very happy.
David seems to be angry.
She looks very beautiful.
Predicate
 Predicate is the part of a sentence which says something about the subject of the sentence.
 Predicate is usually a large part of the sentence.
 The part of sentence, other than the subject, is called predicate of the sentence.
 The underlined part in the following examples is the predicate of each sentence.
He is writing a poem.
She is laughing.
They are playing football.
David works in a factory.
 It can be seen in the above examples, that underlined part of each sentence is predicate part
of the same sentence as it is telling something about the subject.

3. Object
 Unlike the subject who acts, an object is a noun or a pronoun in a sentence which is acted
upon.
 The subject is the actor of the sentence who acts upon the object.
 The object is a noun or a pronoun that is acted upon by the subject.
 Example.
He is eating an apple.
 The noun ‘apple’ in the above sentence is the object of the sentence because it is being
acted upon by the subject ‘He’.
 The subject ‘He’ is acting (eating) and the object ‘apple’ is being acted upon (is being
eaten) by the subject.
 Examples.
She is singing a song.
He is writing a letter.
She is repairing her laptop.
 Note. All sentences do not have an object.
o Some verbs do not require an object, which are known as intransitive verbs.
o Hence, sentences having intransitive verb may not have an object.
o Read the following examples.
He is laughing.
She is sleeping.
They are running.