Marcia Said:

tell me some softwares which can correct your english writing.?

We Answered:

Try CorrectEnglish, very handy and helpful.
CorrectEnglish improves the quality of English written communication by analyzing the most fundamental elements of your document. It identifies grammar and style errors, provides task-specific writing feedback, and supports word choice and Enrichment to make your writing clear, polished, and effective.

Thats excactly what you need:) I think MS word also does that, but not that powerful

Janet Said:

How can you improve the quality of your written english?

We Answered:

Read good publications like Reader's Digest, Time, Newsweek often. Practise writing simple essays and let somebody correct your grammar, structure and enhance your vocabulary. Read great speeches by politicians, too.
Wish you success!

Martin Said:

how to improve your english? all the skills writing,listening,speaking when you don't live in an english speak

We Answered:

Read classic literature, watch a lot of movies, TV in English (BBC has English at a very high level). Try to think in English. Find some English friends in Skype and chat with them.