There are two accepted forms for possessive singular nouns that end with an s:

Add an apostrophe (') after the existing s at the end of the word:

• Dobos'

• Dobos's

Examples:

The meeting is being held in Ms. Dobos' office.

The meeting is being held in Ms. Dobos's office.

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: Marites'

Add an apostrophe s ('s) after the existing s at the end of the word: Marites's

Examples:

Marites' brother helped her with her homework.

Marites's brother helped her with her homework.

Note: The name of a person is a proper noun. A proper noun is always capitalized.

The possessive form for the singular noun Peter is Peter's.

Example: I met Peter's parents at the picnic.

The possessive form for the plural noun Peters is Peters'.

Example: The two Peters' fathers are brothers.

The possessive form of the proper noun Mr. Kent is Mr. Kent's.

example: Mr. Kent's classroom is on the second floor.

The possessive form of the proper noun Benjamin is Benjamin's.

Example: Have you met Benjamin's brother?

The noun dickens (lower case d) has no possessive form, it is a word used for emphasizing a question to express surprise or anger (Who the dickens was that?). To some, using the noun dickens is a euphemism for invoking the devil.

The possessive form for the proper noun Dickens is Dickens's. The possessive of all English singular nouns is formed by adding -'s. Singular nouns already ending in -s acquire a new syllable, along with the -'s of the possessive.

There are two accepted forms that show possession for singular nouns ending in s:

Add an apostrophe (') after the existing s at the end of the word: Atticus'

Add an apostrophe s ('s) after the existing s at the end of the word:

Atticus's

Examples:

Atticus' children are Jem and Scout.

Atticus's children are Jem and Scout.

The possessive form of the singular noun librarian is librarian's.

Example: The librarian's desk was stacked with books.

The possessive form of the plural noun founders is founders'.

Example: We have a bronze plaque with our founders' names.

There are two accepted forms for possessive singular nouns that end with an s:

Add an apostrophe (') after the existing s at the end of the word: Williams'

Add an apostrophe s ('s) after the existing s at the end of the word: Williams's

Examples:

Jim Williams' house is number four.

Jim Williams's house is number four.

The possessive form of the singular noun William is William's.

Example: I like William's new car.

The word 'author' is a noun, a word for a person.

The word 'purpose' is a noun, a word for an idea.

The possessive form of the noun phrase 'the purpose of the author' is 'the author's purpose'.

The noun author's is a possessive noun form.

The word writers is the plural form of the noun writer.

example: "These writers were good friends."

The word writer's is the possessive form. The 's indicates that something belongs to a writer.

example: "This was the writer's first book."