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: Spriggs'
Add an apostrophe s ('s) after the existing s at the end of the word: Spriggs's
EXAMPLES
Mr. Spriggs' office is on the second floor.
Mr. Spriggs's office is on the second floor.
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 of the proper name "Spriggs" is "Spriggs's."
singular possessive: boy'splural possessive: boys'
The singular possessive form of "speaker" is "speaker's."
The possessive singular of "roommate" is "roommate's."
The word Diaz (without the s) is a singular, proper noun; the name of a person. The word Diaz's is the singular possessive noun. The possessive form shows that something in the sentence belongs to a person named Diaz. Examples: Mr. Diaz is my history teacher. (singular, proper noun; subject of the sentence) Mr. Diaz's class is my favorite. (singular, proper, possessive noun; the class of Mr. Diaz)
The possessive form for the noun puppy is puppy's.Example: The puppy's name is Felix.
The name Mrs. Flowers is singular (one person).The name Mrs. Flowers is a proper noun (the name of a person).The name Mrs. Flowers is not possessive.
The possessive form of the proper noun Izzy is Izzy's.Example: The name of Izzy's dog is Spot.
If the proper noun Myers is the singular name Myers is, the singular possessive form is Myers's.Example: Jim Myers's application has been accepted.If the proper noun Myers is the plural for for the name Myer, the plural possessive form is Myers'.Example: The Myers' dog is a spaniel.
The singular possessive form of the invention of Edison is Edison's invention.Note: The noun Edison is a proper noun, the name of a person. Proper nouns are always capitalized.
The singular possessive form of horse is horse's.example: My horse's name is Baxter.
Yes, Parkinson's is a noun, a singular, proper, possessive noun; a word for the name of a condition based on the name of a person, also a proper noun.
singular possessive: boy'splural possessive: boys'
The singular possessive form of "speaker" is "speaker's."
The possessive singular of "roommate" is "roommate's."
The possessive form of the noun christian is Christian's.example: He was wearing a Christian's cross around his neck.Note: The noun Christian is a proper noun, the name of a specific type of religion. A proper noun is always capitalized.
The possessive form of the singular noun speaker is speaker's.example: What is the speaker's name?
The singular possessive form of wife is wife's.Example: My wife's name is Elizabeth.