My writing is very bad what should I do to improve?
Read books on writing style, and keep practicing. Get someone to proof read your work, and offer suggestions for improvement. Keep at it, and don't get discouraged.
Writing is about "saying" exactly what you mean without leaving room for misinterpretation. You have to paint a picture, so to speak, that provides your message, an appropriate tone, and gives an easy flow for the reader. My advice is to start by just writing your ideas as they come to you without worrying too much about how it's sounding or even your grammar so much to start with. Then you go back and read it over and elaborate further during this step. Do it a few times until you've molded your masterpiece. You'll know you have the right flow and wording and tone once you do enough fine tuning. Also, try not to be overly wordy or use big words that don't come to you naturally. In fact, using lesser words forces you to use only the ones that are the most descriptive. The thesaurus is a major writing tool. Pick the the right words, and make sure that it is your voice that's coming through.
As mentioned above, the only way to improve is through practice. Sometimes the hardest part is just getting pen to paper. If you sit thinking all the time no writing will get done. Write something related to teh topic at hand even if it will not end up being your final essay etc. My ENGL 2 professor suggested free association. When writing on a topic, just write a list of thoughts or words that come to mind. Once you have a list, go back and find the points you'd like to work with. Then start writing. It may take many passes to get the final document you're looking for but getting the pen to paper is where it starts.
Just adding to what everyone else has said here--even after revision, sometimes your writing can seem less than satisfactory to you. But to others, it's great. You might want to let your friends or classmates read your work and give you feedback. Is your message clear and concise? Can they tell what you're trying to say? Is there a more creative way to say it? It's a lot like art, in the way that you may see all the flaws in your own drawing or painting, but others may not notice it at all...but sometimes, they may have a critique that can help you out.
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