The World Wildlife Fund has made this error. World Wildlife Fund / Via adsoftheworld.com Chris Christie too. facebook.com Come on, Chris. And let's not even get started on Bieber. Tap to play or pause GIF Tap to play or pause GIF The Island Def Jam Music Group / Via youtube.com See the pattern? "If I was" is just not correct. shutterstock.com The correct phrasing in these cases utilizes the subjunctive verb form, making it "If I were..." shutterstock.com As the Oxford Dictionary defines it, the subjunctive is "relating to or denoting a mood of verbs expressing what is imagined or wished or possible." shutterstock.com It's often used, therefore, in cases where the speaker is expressing a desire or making reference to an event that might not actually happen. Tap to play or pause GIF Tap to play or pause GIF whatsdanupto.com Want an example of someone who gets it right? Look no further than Beyoncé. Tap to play or pause GIF Tap to play or pause GIF Sony BMG Music Entertainment / Via youtube.com She uses the subjunctive because she's expressing desire to experience an event that will likely not actually happen. You go, Bey! So if I were you, I'd be sure to start using the subjunctive today if you don't already! whatsdanupto.com Grammar rant over.