The possessive form of the singular noun son-in-law is son-in-law's.
Example: I'm making a cake for my son-in-law's birthday.
The plural form of the noun son-in-law is sons-in-law.
The plural possessive form is sons-in-law's.
Example: Both of my sons-in-law's birthdays are on the same day.
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The singular possessive is ant's.The plural possessive is ants'.
Singular possessive: secretary's Plural: secretaries Plural possessive: secretaries'
The singular possessive is biker's; the plural possessive is bikers'.
The word sisters' is plural possessive. The singular is sister, singular possessive is sister's; the plural is sisters, the plural possessive is sisters'.
The singular possessive is avocado's; the plural possessive is avocados'.
Singular possessive: mother's Plural possessive: mothers'
The singular possessive is army's.The plural possessive is armies'.
Women's is a plural possessive. The singular possessive is woman's
Niece's is a singular possessive noun. niece - singular nieces - plural niece's - singular possessive nieces' - plural possessive
"Bee" can be both singular and plural. The singular possessive form is "bee's," while the plural possessive form is "bees'."
The singular possessive form is heart's; the plural possessive form is hearts'.