How do you form the possessive of noun?

Answer 1

You form the possessive of a noun by adding an apostrophe and an s. You can frequently do the same thing by using the preposition of. That can clarify the situation when you could confuse possessive and plural or cause some other type of confusion.

Answer 2

To form the possessive of a noun, add an apostrophe and an "s" ('s) after the noun. For plural nouns ending in "s," just add an apostrophe after the "s" ('). For plural nouns not ending in "s," add an apostrophe and an "s" ('s).