Solution: The classic Rahmatov grammar hasn't changed much in 20 years. The 1998 edition is 95% the same as the 2015 edition. English grammar rules (e.g., "I am going" for future) do not change. Use an older edition – it is fine.
Before you click any suspicious "skachat" button, you should know that many websites offering free PDFs of Rahmatov's book are pirated. Uploading and downloading copyrighted textbooks without permission is illegal in most countries (including Uzbekistan). Rahmatov Ingliz Tili Grammatikasi Pdf Skachat
Pirated PDFs often come with risks:
Internetda “Rahmatov grammatikasi pdf” degan qidiruv natijasida ko‘plab saytlar chiqadi. Afsuski, ularning aksariyati: Solution: The classic Rahmatov grammar hasn't changed much
Muhim eslatma: Rahmatov grammatikasi hali rasman bepul PDF sifatida nashr etilmagan. Shuning uchun “skachat” qilishdan oldin ehtiyot bo‘ling. Quyida qonuniy va xavfsiz usullarni tavsiya qilamiz. Muhim eslatma: Rahmatov grammatikasi hali rasman bepul PDF
The Rahmatov book is famous for its high volume of exercises. Do not skip. Do exercises 1 through 50, even if they seem repetitive. Repetition is the mother of skill.