A noun is a part of speech that is used to name a person, place, thing, quality, or action. Examples: Mango, girl, boy, cat, etc. Any name given to a person, thing, animal or place is called a noun. Nouns are words used to refer to objects, places and living things. Some nouns also refer to feelings and emotions.
Possessive Case: When a noun or a pronoun is used to show ownership or possession, authority, etc., it is said to be in the Possessive Case.
For example: This is Rohit’s bike.
When the noun is Singular, the Possessive Case is formed by adding’s (apostrophe ‘S) to the noun and when plural noun ends with an ‘s’, we put only an apostrophe after the ‘S’ to form its possessive case.
Apostrophe or no apostrophe after noun ends in ‘s’
When a proper noun ends in s, the possessive form can take either an apostrophe (‘s) or only an apostrophe () at the end.
Two possessive nouns one after the other
Sometimes, two possessive nouns appearing one after the other may be necessary to indicate double ownership.
Apostrophe indicates joint ownership When two nouns are joint owners, only the second noun is in the possessive form of an apostrophe and ‘s’.
Compound possessive nouns If it is a hyphenated compound noun, add the apostrophe (‘s) to the last word.