what strategies can I use If I am not sure if I have used standard english

as an AI language model, I am trained to provide suggestions for writing. If you are unsure if you have used standard English, here are some strategies you can use:

1. Review grammar and punctuation rules: Make sure you understand the basic rules of English grammar and punctuation. Reviewing these rules can help you avoid common mistakes and reinforce proper use of standard English.

2. Consult a writing guide: There are many writing guides available that can help you improve your writing and use of standard English. These guides provide tips, examples, and explanations of grammar rules.

3. Read widely: Reading widely can expose you to different writing styles and help you develop a better sense of what constitutes good writing and standard English.

4. Use online tools: There are many online tools available that can help you check your writing for errors in grammar, punctuation, and style. Some examples include Grammarly, Hemingway, and ProWritingAid.

5. Get feedback: Ask someone you trust, such as a teacher or friend, to review your writing and provide feedback on areas where you can improve your use of standard English.