For goodness’ sake, when do we add apostrophe-s Russell Smith Special to The Globe and Mail Published August 11, 2011 ...

This is sloppy—it should read “Are you making words shorter by replacing some of their letters with an apostrophe?” Perhaps the next GrammarCheck flowchart should be on the sticky grammar ...

A singular noun is a noun referring to just one person or thing, for example 'cat'. When you want to show that something belongs to that person or thing, you add a possessive apostrophe and an 's ...

However, if the singular noun ends in ' s ' as in your example, Everson, you can either just add an apostrophe (') or apostrophe ' s ' ('s): 'All of Dickens' novels have now been adapted for ...

For plural possessives ending in X or Z, first make plural by adding ES, then add the apostrophe on the end as you do for all plural possessives. The Coxes’ party. The Martinezes’ house. 8.

If a singular word ends in S, you have a choice whether to add another S after the apostrophe. In Chicago style, which book publishers follow, it’s James’s hat.