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:
Collins'
Add an apostrophe s ('s) after the existing s at the end of the word:
Collins's
Example:
Mr. Collins' office is on the second floor.
Mr. Collins's office is on the second floor.
The possessive spelling of "Welsh" is "Welsh's."
The possessive spelling of Gonzales's is Gonzales'.
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.
The correct spelling is "gentlemen's".
The possessive spelling of "Welsh" is "Welsh's."
The possessive spelling of Gonzales's is Gonzales'.
The single possessive of people is people's. The plural possessive of people is peoples'.
The possessive of scientist is scientist's (apostrophe S).
the possessive plural of contralto is contraltos'.
The spelling its is itself the possessive. The word does not use an apostrophe.The spelling it's is a contraction for "it is" and should not be used as the possessive.
Letters'
The spelling woman is singular, with the possessive woman's (of one woman).The spelling women is plural, with the possessive women's(of more than one woman).
The singular possessive form is story's.
The correct possessive form of the plural noun women is women's.Example: The women's project is preparing the playground for summer.
It depends on whether you are forming a possessive or a plural.The spelling boy's is a singular possessive, e.g. one boy's book.The spelling boys is plural, as in several boys.The spelling boys' (ending apostrophe) is a plural possessive, as in the boys' bikes.
There would be an apostrophe and s, so it could be "The college's campus."