Today we celebrate language. On the 5th Anniversary of National Grammar Day, we decided to highlight some of our favorite fails on the web's most popular social networking site. And as you'll see, for every Zadie Smith and Junot Diaz, there are a thousand grammar abusers who desperately need to retake Introduction to English. Consider this list a reminder of how cherished, and important, language really is to us all. 

RELATED: 15 Facebook Fails That Will Crack You Up