A headline that was briefly displayed on CNN.com illustrates the violation of a rule on forming plurals.
To form the plural of a noun that ends in y preceded by a vowel, add an s. So journey becomes journeys.
To form the plural of a noun that ends in y preceded by a consonant, change the y to i and add es. So copy becomes copies.
This article was originally posted by the Raleigh News & Observer, a subsidiary of The McClatchy Co.; is posted here to provide continuity; and is copyright © 2011 The News & Observer Publishing Company, which reserves the right to remove this post.