Yes, knowing and applying grammar rules in English is important. However, if you don’t know how to use words and phrases, you will confuse your reader far more than with grammar mistakes. Words are like the “building blocks” of a language, and they are the primary way that you express your meaning to your reader.
WRITING TIP: Don’t use the same word, or the same set of words, over and over again in your writing. Using a variety of words – that is, using synonyms – can make your writing stronger and more interesting to your readers. EXAMPLE ORIGINAL: Last week I bought a dog. My dog enjoys sleeping on