Introduction: Today, English and its use as an international language is agreed upon by all, and a wealth of scientific articles written every day in the whole world is in English. The purpose of this study is to project some commonly used grammatical points that native speakers of Persian, unfortunately, do not follow or do not have adequate knowledge to use when writing in English, but this style of writing in the scientific articles by authors whose mother tongue is English is quite obvious. Methods: In a retrospective study, the author has tried, by drawing on three decades of experience in editing English articles, to provide intriguing points needed to improve the quality of the English articles couched by researchers and authors through exemplification. Results: A review of English articles written by those whose mother tongue is English or Persian shows a noticeable difference, both structurally and lexically, between the two writing styles. Conclusion: Heading off this major problem requires holding numerous meetings and workshops on how to write English articles for Persian speakers to familiarize them with style and features of metadiscourse in research articles jenre.