The possessive form of the noun do is do's.
example: I've made a list of my do's priorities.
No, "him" is not a possessive pronoun. It is an objective pronoun used as the object of a verb or preposition. Possessive pronouns include "his" as a possessive form of "he."
"He" can function as a possessive pronoun (e.g., "This is his book"), but it is not a possessive noun on its own.
The singular possessive is biker's; the plural possessive is bikers'.
Women's is a plural possessive. The singular possessive is woman's
The singular possessive of "ant" is "ant's" and the plural possessive is "ants'".
The possessive form of "he" is "his": He did his homework after dinner.
The singular possessive is "ox's". Another contributor wrote "oxen's", but that is the plural possessive.
The singular possessive is Richard's; the plural possessive is Richards'.
Children's is a plural possessive.Singular: childSingular possessive: child'sPlural: childrenPlural possessive: children's
Possessive nouns (but not possessive pronouns) use apostrophes; therefore, "brother's" is possessive. "Brothers" is plural.
The singular possessive is athlete's. The plural possessive is athletes'.
centipede's in a singular possessive. centipedes' is the plural possessive