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:
Examples:
Mr. Jones' assistant will make an appointment for you.
Mr. Jones's assistant will make an appointment for you.
The plural form of the proper noun Jones is Joneses.
The plural possessive form is Joneses'.
Example: The Joneses' daughters are twins.
The possessive form of the plural, proper noun Joneses is Joneses'.
Example: The Joneses' daughters are twins.
The plural of the name Jones is Joneses.
Jones has the plural Joneses.So the plural possessive would be Joneses' as in "the Joneses' satellite receiver."
Jones's plural is Jonses, in fact.
Jones'
Mrs. Jones's
Jones'
The plural possessive form of Jones is Joneses', e.g.We accepted the Joneses' invitation.
Mr Jones' instead of Mr Jones's :)
It should read: Will all the Joneses please step forward.Joneses is the plural of Jones.
joneses
The plural form of Jones is Jonesese.g.Keeping up with the Joneses meaning to strive not to be outdone by one's neighbours or peers.
Only if it is a plural possessive. For example: The Jones' house. In this example, the apostrophe is after the 's' because there is more than one Jones family member living in the house. This is a plural possessive. If you are only talking about one person then the apostrophe is after the name followed by an 's'. For example: Mike's book.
Neither of these. The plural of Jones is Joneses: "The Joneses live here" or "The Jones family lives here".