There are two accepted forms for possessive singular nouns that end with an S:
Add an apostrophe S ('s) after the existing S at the end of the word:
Examples:
I met Chris's fiance at the party.
I met Chris' fiance at the party.
*Because the S here is sounded, the apostrophe S is the preferred form, with the notable exception that the AP Stylebook suggests the apostrophe only.
Note: If you are a student, use the form that is preferred by your teacher.
The singular possessive form is story's.
The possessive form for the noun dynasty is dynasty's.
The correct spelling for the possessive form of "college" is "college's."
kids'
The possessive of scientist is scientist's (apostrophe S).
contractor's
companies'
falcon's
municipalities
The singular form of the noun mice is mouse.The correct spelling of the possessive form of mouse is mouse's.example: The mouse's tracks led right to a gap in the basement door.
The single possessive of people is people's. The plural possessive of people is peoples'.
The correct possessive form of the plural noun women is women's.Example: The women's project is preparing the playground for summer.