Sorry, I don't have any samples but following points will help you to draft a decent sop.
1. Consider Your Audience
Admissions officers will read dozens, if not hundreds of statements of purpose during each application season. They can smell formulaic writing and insincerity from miles away, but they will also get genuinely excited when they read something truly unique.
2. Demonstrate Interest in the School
Make the admissions officers think fate has brought you to their doorstep, even if you’re applying to ten other schools.
3. Write a Draft
The best writing almost always comes from a lengthy process, rather than a moment of inspiration. Begin brainstorming ideas for your statement of purpose weeks before the application deadline (if possible), and write at least one rough draft. Don’t worry if the writing feels raw while you’re working out what you want to say. Let the first draft be exploratory. The second or third draft is the time to polish, perfect, and proofread.
4. Choose Your Angle Carefully
Your goal in writing a statement of purpose is to present your path through life as a story, one that the admissions committee hasn’t heard before. If you find yourself writing “As long as I can remember, I’ve always wanted to be a teacher,” it’s time to revisit the drawing board. What will you bring to the classroom that no one else does?
5. Peel Back the Layers
Find deeper meaning as you write
6. Last and most importantly
Be Clear and Concise, Revise, Proofread and Have Someone Review It