The word 'both' is an adjective, a conjunction (when used with 'and'), and an indefinite pronoun. None of these forms use a possessive. Examples:
adjective: Both boys have an A in math.
conjunction: Both Jim and John have an A in math.
indefinite pronoun: Both of them have an A in math.
No. Plural possessive is "their" Possessive pronouns do not use an apostrophe.
The noun reindeer is both the singular and the plural; the singular and the plural possessive form is reindeer's.
"Bee" can be both singular and plural. The singular possessive form is "bee's," while the plural possessive form is "bees'."
The possessive form of the plural noun daughters is daughters'.Example: Both of my daughters' birthdays are in May.
The possessive form of the plural noun daughters is daughters'.Example: Both of my daughters' birthdays are in May.
The form husband's is the singular possessive form of the noun husband.The plural form of the noun is husbands.The plural possessive form is husbands'.Example: Both of her late husbands' estates were considerable.
The pronoun its is the possessive form.The form for both subject and object is it.
The possessive form of the plural noun grandfathers is grandfathers'.example: Both of my grandfathers' names are George.
The plural form of the noun princess is princesses.The plural possessive form is princesses'.Example: The seamstress has arrived with both princesses' gowns.
The plural form of the noun granddaughter is granddaughters.The plural possessive form is granddaughters'.Example: Both of my granddaughter's birthdays are this week.
The plural form for the noun Charles is Charleses; the plural possessive form is Charleses'.Example: Both Charleses are in my class but the Charleses' desks are not together.
Both the singular and plural form is corps; the singular or plural possessive is corps'.