What are the rules in forming the possessive form of the noun?

Answer 1

Possessives are formed by adding an apostrophe -s ('s) to the end of the word, or just an apostrophe (') to plural nouns that already end with -s.

Example singular possessive nouns:

the cover of the book = the book's cover

the teacher of our class = our class's teacher

the coat of the child = the child's coat

the shoes of the man = the man's shoes

the house of Mr. Morris = Mr. Morris's house

Example plural possessive nouns:

the covers of the books = the books' covers

the assembly of classes = the classes' assembly

the coats of the children = the children's coats

shoes for men = men's shoes

the house of the Morrises = the Morrises' house

Answer 2

To form the possessive form of a noun, add an apostrophe and an "s" ('s) after the noun. If the noun is plural and ends in "s", just add an apostrophe after the "s". For singular nouns that end in "s", you can choose to add just an apostrophe or apostrophe "s".