The possessive form of the noun businesswoman is businesswoman's.
example: A businesswoman's day doesn't end at the end of a business day.
The plural form of the noun businesswoman is businesswomen.The plural possessive form is businesswomen's.example: Our agency is a businesswomen's resource for job hunting.
Quantum is singular, not singular possessive. The singular possessive form is quantum's.
The singular possessive form of "test" is "test's".
The singular possessive pronouns are "my," "mine," "your," "yours," "his," "her," and "its."
The singular possessive of "ant" is "ant's" and the plural possessive is "ants'".
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The singular possessive form of "classmate" is "classmate's."
The singular possessive of dish is dish's
Taco's is the singular possessive.
Grave's is the singular possessive.
The singular possessive is Martin's.
The singular possessive is fish's.