The plural form for the plural noun persons is persons'.
Example: To accomplish our goal, all persons' cooperation will be appreciated.
monies'
The plural form of the noun woman is women.The plural possessive form is women's.example: The women's locker room is at the end of this corridor.
The single possessive of people is people's. The plural possessive of people is peoples'.
municipalities
companies'
The correct spelling of the noun is dormouse.The plural form is dormice.The plural possessive form is dormice's.
The plural form for the singular noun secretary is secretaries.The plural possessive form is secretaries'.example: The secretaries' jobs are by political appointment.
The plural form of the noun student is students.The plural possessive form is students'.Example: I have to prepare a speech for the students' day assembly.
The correct possessive form of the plural noun women is women's.Example: The women's project is preparing the playground for summer.
If you're using persons as the plural of person, then the plural possessive of persons is persons'.If you're using people as the plural of person, then the plural possessive is people's.(People meaning ethnic groups can have a plural peoples.)
The possessive form of the singular noun person is person's.The possessive form of the plural noun persons is persons'.Examples:Do you know that person's name? (singular)How many persons' names are on the list? (plural)
the possessive plural of contralto is contraltos'.