The possessive form of the singular noun mattress is mattress's.
Example: The mattress's thick padding made it very comfortable.
The singular possessive is fish's.
Buzz's is the singular possessive.
The possessive form is Amos's.
Mary's is the singular possessive form.
The singular possessive form is foot's.
Quantum is singular, not singular possessive. The singular possessive form is quantum's.
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The possessive form for the noun mattress is mattress's.Example: The mattress's satin brocade cover looked very expensive.
The singular possessive pronouns are mine, yours, his, hers, and its. The singular possessive adjectives are my, your, his, her, and its.
The singular possessive of dish is dish's
The singular possessive is Martin's.
The singular possessive is fish's.
Grave's is the singular possessive.
The singular possessive is test's.
Buzz's is the singular possessive.
The singular possessive is biker's; the plural possessive is bikers'.
The singular possessive of criteria is criteria's.