Possessive noun

A possessive noun is a noun that shows ownership or possession of something. It is formed by adding an apostrophe and the letter "s" ('s) to the end of a singular noun, or just an apostrophe (') to the end of a plural noun that already ends in "s".

For example:
- The dog's bone (singular possessive)
- The students' books (plural possessive)

Definition: A possessive noun indicates ownership or possession of something. It is formed by adding an apostrophe (') and either an 's' or nothing to the end of a noun.

Rules for Forming Possessive Nouns:

Singular Nouns:

- Add an apostrophe + 's' to end of the noun.
- Example: The boy's bike

Plural Nouns Ending in 's':

- Just add an apostrophe to the end of the noun.
- Example: The students' backpacks

Plural Nouns Not Ending in 's':

- Add an apostrophe + 's' to the end of the noun.
- Example: The children's toys

Proper Nouns:

- Follow the same rules as common nouns.
- Example: Mary's dog

Exceptions:

- Proper nouns ending in 's': Add only an apostrophe.
- Example: Jesus' teachings
- Indefinite pronouns: Use "of" instead of 's'.
- Example: The entirety of the situation

Uses:

- To indicate ownership or possession:
- The cat's collar
- The company's headquarters
- To indicate relation or connection:
- The teacher's assistant
- My sister's friend
- To express measure or quantity:
- A day's worth of work
- Two hours' drive

Examples:

- The dog's tail wagged happily.
- The school's playground was crowded with children.
- Mary's birthday is next week.
- The team's victory was a major upset.
- The world's oceans are vast and mysterious.