Answer :
class's = owned by one class.
classes's = owned by multiple classes. (usually shortened to classes')
You can't shorter class's so class', however. Here's why:
You can only shorten it when it's a plural noun that ends in an s or when it's a proper noun (names, places) that ends in an s.
So unless there's more than one class, it's class's.
classes's = owned by multiple classes. (usually shortened to classes')
You can't shorter class's so class', however. Here's why:
You can only shorten it when it's a plural noun that ends in an s or when it's a proper noun (names, places) that ends in an s.
So unless there's more than one class, it's class's.