Noun : Case
There are four kinds of case :
If noun or pronoun is used as the subject, it is called nominative use.
She is reading.
Mohan is walking
If noun or pronoun is used as the object, called accusative use.
I like her.
That is Anjali.
If the possession or the relation of noun is said, it is called possessive case.
If noun or pronoun is called or addressed, it is called dative case.
John, read mindly.
Come here, Seema.
But, before reading noun and case, we should study the case of pronoun.
1. After let pronouns are used in accusative case.
Let we read mindly. —wrong
Let us read mindly. —correct
Let them, her and we go there. —wrong
Let them, her and us go there. —correct
2. After preposition pronoun is used in accusative case.
There is a nice relation between she and I. —wrong
There is a nice relation between her and me. —correct
3. After than, pronoun should be used in nominative case.
Ram is better than her. —wrong
Ram is better than she. —correct
But, Ram runs faster than she/her —correct
[As helping verb is not used in comparative degree]
4. After if pronoun is used in nominative case.
If I were him I would have gone. —wrong
If I were he I would have gone. —correct
Use of the Possessive Case
1. To the end of a singular noun we put —'s for possessive case :
Rajiv's book, Meena's mother, President's bodyguard.
2. —s ending plural nouns take only (’)
Boys' hostel, Girls' school
Women's college, Men's competition, Children's park
3. In compound nouns, we use possessive with the last term.
4. If possessive is used before than, it should be used after than.
Ravi's sister is more beautiful than Karan. —wrong
Ravi's sister is more beautiful than Karan's. —correct.
Kareena's husband is more handsome than Karishma. — wrong
Kareena's husband is more handsome than Karishma's. — correct
Rohan's brother is more intelligent than Mohan. —wrong
Rohan's brother is more intelligent than Mohan's. —correct