I'm a linguist and would be more than happy to provide assistance with any linguistics / language / grammar articles.
My areas of expertise are:
Time and Language (Tense, Aspect, Mood, Perfection, Aktionsart); English Grammar & the linguistics of the English language; Modals; Sentence Structure / Linguistic Typology; Verb Structure; Future Tenses in English.
My website is http://CALLEteach.org
Feel free to email me directly at firstname.lastname@example.org