* Singular: Refers to one person, place, thing, or idea.
* Example: *dog, house, happiness*
* Plural: Refers to more than one person, place, thing, or idea.
* Example: *dogs, houses, happinesses*
* Possessive: Shows ownership or possession.
* Example: *dog's, house's, happiness's*
Let me know if you'd like to explore any of these noun forms in more detail!