Set aside time every day to practice your writing skills. The only way to improve is to work hard every day. Make writing time your time. Do not allow friends or family to distract you. Find a quiet place where you can concentrate on the task at hand.
Research writing exercise Web sites. When you find an exercise that makes sense to your, try it. Create the building blocks that will help you grow as a writer. These exercises may include sentence jumbles, spelling tests, diction tests, and verb-tense exercises.
Write your thoughts daily. Whether you use a daily writing prompt that provides a topic for your journal or you simply write about what happens to you from day to day, writing will help you to begin thinking about content and organization in English writing skills.
Share your writing. Find a co-worker, friend or teacher willing to look at your writing with you. Make sure this is a native English speaker. Have your writing read aloud to you. Hearing it back in someone else's voice will highlight tense mistakes, awkward wording, or other problems. Your "tutor," informal or formal, will help you to sound more like a native speaker.