Nouns:
* Singular Nouns: Add an apostrophe and an "s" ('s).
* * Example: *cat's toy*, *John's car*, *the bus's engine*
* Plural Nouns Ending in "s": Add only an apostrophe after the "s".
* * Example: *students' grades*, *birds' nests*, *the Joneses' house*
* Plural Nouns Not Ending in "s": Add an apostrophe and an "s".
* * Example: *children's toys*, *men's shoes*, *women's rights*
Indefinite Pronouns:
* Singular Indefinite Pronouns: Add an apostrophe and an "s".
* * Example: *someone's book*, *anybody's guess*, *one's own thoughts*
* Plural Indefinite Pronouns: Add only an apostrophe after the "s".
* * Example: *both's opinions*, *several's suggestions*
Important Notes:
* Compound Nouns: Add the possessive marker ('s) to the last word of the compound noun.
* * Example: *mother-in-law's advice*, *brother-in-law's car*
* Possessive Pronouns: These pronouns already show possession and do not need an apostrophe (his, hers, its, ours, theirs, yours, whose).
Example Sentences:
* The dog's bone was chewed to pieces.
* My sister's new car is beautiful.
* Everyone's opinion is important in this decision.
* The children's laughter filled the air.
* Anybody's guess is as good as mine.
Let me know if you have any other questions!