Writing good English requires a combination of several factors, including grammar, vocabulary, sentence structure, and coherence. Here are some tips on how to write good English:

1. Use correct grammar: This is the foundation of good writing. Make sure you understand the basic rules of grammar, such as subject-verb agreement, tense consistency, and pronoun usage. Avoid common mistakes like run-on sentences and sentence fragments.

2. Expand your vocabulary: The more words you know, the more options you have to express your ideas. Read widely and regularly, and look up words you don't know. Use a thesaurus to find synonyms and antonyms that can add variety to your writing.

3. Pay attention to sentence structure: A well-structured sentence is clear and easy to understand. Use a variety of sentence types, such as simple, compound, and complex sentences. Vary your sentence length to create rhythm and emphasis.

4. Be concise: Good writing is clear and to the point. Avoid using unnecessary words or phrases that don't add meaning to your sentences. Use active voice instead of passive voice to make your writing more direct and engaging.

5. Edit and proofread: No matter how good your writing is, it can always be improved. Take the time to edit your work for clarity, coherence, and accuracy. Check for spelling and grammar errors, and make sure your punctuation is correct.

In summary, good writing requires attention to detail and a commitment to improving your skills. By following these tips, you can write clear, concise, and effective English that will engage your readers and convey your ideas with clarity and precision.