Question

What is the plural possessive form of "people"?

Answer 1

`"people"color(red)("'s")` or `"people"color(red)(color(red)("s'")`

Explanation:

"Our New Years celebration is for all people. It is a `color(red)("people's")` party"

"people" may be considered a plural form (of "person");
however
"peoples" may be a plural form of people when "people" is used to refer a variety of nationalities or races.

Formation of the possessive follows the normal rules:

• adding `color(blue)("'s")` to nouns that do not end in `color(green)"s"`
• adding `color(blue)("'")` (just an apostrophe) to nouns (especially plural forms) that end in `color(green)"s"`

[there is some regional variety here; in some places if the noun ends in "s" but is not plural, `color(blue)("'s")` is used e.g. the possessive of "Charles" may be written as "Charles's" or just as "Charles'".