21 common grammar mistakes and how to avoid them

SPSS  Carsten Koall/Stringer/Getty Images Grammar rules can seem like a nuisance. Honestly, do you really need to check every single document for appropriate hyphenation? According to CUNY Journalism Press editor and writing coach Timothy Harper, the answer is a resounding “YES.” “The whole point of grammar and punctuation is clarity,” he told Business Insider. If you write…