Напиши на англиском с днем рождений моя лучшая подрушка

Here are a few English options:

• Happy birthday to my best friend!
• Happy birthday, my best friend!
• Wishing you a wonderful birthday, my best friend!
• Happy birthday to my amazing best friend!

If you want something a bit more personal: "Happy birthday to my wonderful best friend — I hope your day is as amazing as you are."