Keeping track of plurals and possessives

© JJAVA - Fotolia.com

© JJAVA – Fotolia.com

Errors involving the presence or absence of an apostrophe or the letter s are among the most common spelling mistakes, which is why I mention the problem over on my Services page:

There is some overlap among line editing, copyediting, and proofreading. For example, all include taking care of pesky details like ensuring plural possessives of surnames ending in s are formed correctly.

What does that mean, exactly? Continue reading