If you’re a French native speaker, the best way to improve your written English is to use the Mémo Anglais (there are 3 different textbooks: A2-B1, B1-B2 & B2-C1). You’ll be able to go over the 150 essentiel points to improve your writing (don’t hesitate to ask me about the coding!). You can practice using the very useful apps on your smartphone!

You can also refer to the two following references:

— intermediate students: Raymond Murphy, Essential English Grammar in Use, Cambridge University Press.

— advanced level: Martin Hewings, Advanced Grammar in Use, Cambridge University Press.

There are many websites to study grammar (many of them including quizzes): the English Grammar Quizzes website (click here) for example. You can also test your English on the Cambridge University Press website (click here).