The word country's is the possessive form of the singular noun country.
Example: That country's flag is green and red.
The plural form of the noun country is countries.
The plural possessive form is countries'.
Example: All of the participating countries' flags weredisplayed.
The word countries is the plural form of the singular noun country.The possessive form of the plural noun is countries'.The singular possessive form is country's.
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."
Taco's is the singular possessive.
The singular possessive of dish is dish's
Grave's is the singular possessive.
The singular possessive is Martin's.
The singular possessive is fish's.