Вот пример письма на английском языке о субботе, в котором описывается, чем ты занимаешься, для 6 класса:
Dear Friend,
I hope you are doing well! I want to tell you about my Saturday.
On Saturday, I usually wake up late and have a big breakfast. After that, I like to do my homework and study a little. Sometimes, I play with my friends outside or ride my bike. In the afternoon, I watch my favorite TV show or read a book. In the evening, my family and I have dinner together, and then I go to bed feeling happy and ready for a new day.
That's how I spend my Saturday. I hope you have fun too!
Best wishes,
[Your Name]
Если нужно, могу помочь написать это письмо чуть проще или чуть более формально.