Though Donald Trump may not be a “polished politician,” as noted by running mate Mike Pence during the vice presidential debate, he is a longtime English speaker. And yet the gaffes, the offenses made those who support proper use of the English language, are many.

While we have grown more accustomed to his somewhat rambling oratory style, the errors stick in our brains. Across stump speeches and debates, social media and interviews, our mental red pens are uncapped and heavily used.

Here, some of the most cringeworthy examples of Trump mangling his native language.