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: nucleus'
Add an apostrophe s ('s) after the existing s at the end of the word: nucleus's
Note: If you are a student, use the form that is preferred by your teacher.
Quantum is singular, not singular possessive. The singular possessive form is quantum's.
The singular possessive form for the noun clock is clock's.
The singular form of nuclei is nucleus.
"Nucleus" is a singular noun. The plural form is "nuclei".
The possessive form for the singular noun speed is speed's.Example: This device will measure your speed's velocity.
The singular possessive form of "test" is "test's".
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 is ant's.The plural possessive is ants'.
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The singular possessive form is classmate's.
The singular possessive of dish is dish's
Taco's is the singular possessive.
The singular possessive is biker's; the plural possessive is bikers'.
The singular possessive is fish's.
Grave's is the singular possessive.
Buzz's is the singular possessive.
The singular possessive is Martin's.