In this video by Wibergh and Hawthorne (2010), grammatically competent international students explain challenges they'd faced in academic writing in the U.S.
Wibergh, Felix (Producer), & Hawthorne, Nicholas (Director). (2010). We no speak americano: Understanding international students' writing [YouTube video]. U.S.: Nick Hawthorne's Channel. Retrieved from https://youtu.be/V7pYB6W049I