Writing is not just about putting grammar and vocabulary in place, but also about the ability to construct sentences linearly. The solution perhaps is improving the writing techniques. This is easy, we can see here. Just follow and practice heartedly.
One should develop sound grammar and vocabulary, just knowing them doesn’t do the work. Secondly, one should also develop the ability to be comfortable with new words. The basic words are fine to do with, but a rich vocabulary will only add stars; though there is an important instruction to not over-do this. The audience is not supposed to sit with a dictionary and find references for difficult words.
The third is having a good reading habit. A person who reads has the luxury of using good language and even experimenting. There is no need to pick the novels with very good language, an initial practice can begin with easy and simple storybooks and gradually moving to the acclaimed writers. Anita Desai can give a good head start. Her ‘In Custody’ would put forth a good story and will also provide lessons to improve writing.
The fourth is to start writing. Begin writing and that is how the improvements start. One should use active voice instead of passive voice because that uses fewer words and energy. Try to use a stronger word and determine which word makes more impact, which does not.
The final point is to write effective articles, one that solves the problem of audiences. You need to avoid clichés. You can put the whole quote on the paper and credit the author. Making impactful articles also involves showing, not just telling. To write a story, for instance, the writer needs to show the story and inject the word that drives emotion.