A noun is a person, a place, collection quality or a thing. Nouns can name measurable objects or conditions, ideas, and qualities. Concrete nouns are nouns that name physical/measurable things while abstract nouns are qualities, ideas, or conditions that cannot be measured physically.
Pronouns are words that can replace nouns in a sentence. Pronouns can take many forms in a sentence. They can either be the subject or object in a sentence. Pronouns are mostly used to avoid repletion of a noun in a sentence.
For example, John is a good player. He likes basketball. The personal pronoun ‘He’ helps to avoid repeating ‘John’ again in the sentence.
However, situations that pronouns are used to represent nouns are outlined as follows:
a. Possessive pronouns
Personal pronouns include your/yours, my/mine, its, his, hers, our/ours, their/theirs, whose.
That bag of oranges is mine.
The yellow cab is theirs.
b. Subject pronouns
Subject pronouns include: I, you, it, she, he, we, they
He joined the science club.
They won a football match today.
c. Object pronouns
Object pronouns include them, it, our, me, her, him, you.
That present was for you.
Our shop is big.
d. Reflective pronouns
Reflective pronouns include himself, herself, itself, ourselves, themselves, myself, yourself.
We picked the oranges ourselves.
Jane walked home by herself.
e. Interrogative pronouns
Interrogative pronouns include: who, whom, whose, which, what.
Who is the owner of that bicycle?