The possessive form is: everyone's ideas
The possessive form of the indefinite pronoun everyone is everyone's.example: Class, I've graded everyone's essay.
Of or pertaining to possession; having or indicating possession., The possessive case., A possessive pronoun, or a word in the possessive case.
The possessive case of resurrection of Christ is Christ's resurrection.
Everyone
The pronoun 'your' is the possessive case; a possessive adjective, a word that describes a noun as belonging to you.
You would use an apostrophe before "s" to form the possessive case of an indefinite pronoun, just like any other possessive.Examples: Whether you'd actually enjoy doing it is anybody's guess.The accident was nobody's fault.
The word team's is a possessive noun.The word our is a possessive adjective (a pronoun).(The pronoun us is not in the possessive case.)
For one DVD, use the singular possessive form 'the DVD's case'. For two or more DVDs, use the plural possessive form, 'the DVDs' case'.
Is king’s rights a correct example of the singular possessive case?
A possessive case noun can show ownership.example: I borrowed my brother's car.A possessive case noun can show possession.example: The dog's collar has a tag with his name.A possessive case noun can show origin.example: Have you seen yesterday'snewspaper?A possessive case noun can show purpose.example: There is a children'splayground in the park.
The possessive form of the proper noun Heintz is Heintz's.Example: Mr. Heintz's classroom is down that corridor.
The possessive form of the plural noun hours is hours'.