ItÂ’s perfectly fine to fracture the occasional stuffy grammatical rule (and many times itÂ’s preferable). On the other hand, making some grammatical errors just makes you look bad, and hurts your effectiveness. Sometimes we even misuse words simply because we hear others use them incorrectly. So, weÂ’ve assembled the 15 most egregious grammar goofs into one helpful infographic. With this handy reference, youÂ’ll never look silly again.