There is no possessive form for verbs or adverbs. The word 'how' is an adverb modifying the verb 'does' (third person singular present of the verb 'do').
However, if you mean 'does' as the plural form for the noun 'doe' (a female deer), the plural possessive noun is does'. For example:
The film explained how does' offsping sit quietly in the tall grass to avoid predators.
Him is not possessive. The possessive would be 'his'.
No, he is not possessive. The possessive form would be his.
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 is ant's.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'.
The singular possessive is athlete's. The plural possessive is athletes'.
Possessive nouns (but not possessive pronouns) use apostrophes; therefore, "brother's" is possessive. "Brothers" is plural.
Singular possessive: secretary's Plural: secretaries Plural possessive: secretaries'
Children's is a plural possessive.Singular: childSingular possessive: child'sPlural: childrenPlural possessive: children's