Write a teller to your friend about how to improve in English

Dear Sakib,

I hope you're doing well. I received your letter and I'm glad to hear that everything's alright with you. I'm also doing fine. You mentioned that you're having some trouble with English, so I wanted to share some tips to help you get better.

Learning English isn't about just memorizing things; it's more about practicing regularly. First, try to read English material as much as you can. This will help you learn more words. Don't worry if you don't understand all the words at first. Try to guess their meanings from the sentences. If that's tricky, you can look up the words in a dictionary. Doing this will definitely grow your vocabulary.

Next, it's a good idea to get interested in grammar rules. This will help you understand how sentences are put together. Also, try to attend English classes consistently. While you're in class, practice speaking English with your friends. If it's possible, you could even join special classes that focus on teaching English. 

When you're speaking and writing, try your best to use English accurately. By doing this, you'll gradually get better at English. I'm confident that if you follow these steps, your English skills will improve over time.

Wishing you all the best,

Your older brother,

Rupak