There are two accepted forms for possessive singular nouns ending in s:
Add an apostrophe (') after the existing s at the end of the word: lioness'
Add an apostrophe s ('s) after the existing s at the end of the word: lioness's
EXAMPLES
The lioness' cub was asleep by her side.
The lioness's cub was asleep by her side.
Note: The -s's is the most commonly used form, but if you are a student, use the form that is preferred by your teacher.
The singular possessive noun for lioness is lioness' or lioness's, whichever you think sounds better.
singular
No, the noun creatures' is the possessive form of the plural noun creatures.The singular possessive form is creature's.
The singular form of the noun lions is lion.The singular possessive form is lion's.Example: We heard a lion's roar in the distance.
The possessive form of the singular noun monkey is monkey's.example: The monkey's tail was wrapped around a branch.
The singular possessive noun for lioness is lioness' or lioness's, whichever you think sounds better.
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 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.