I’m a newbie here. I have got some reservations on the usage of the word, both. To the best of my knowledge, it is followed by are. But in a website I just came across the sentence, “TESOL Canada board exam is required of both native or non-native graduates with or without teaching experience”. Now in this fore-mentioned quoted sentence, I personally think the word, both should be followed by the conjunction, and in lieu of or. And I have also attached the image along with this. So I’d be grateful if you guys clear this doubt. Thanks beforehand.