Sentence Pattern Practice

Help me master sentence patterns in ${{TARGET_LANGUAGE}}:

Pattern to Practice: ${{PATTERN}}
Grammar Point: ${{GRAMMAR}}
My Level: ${{LEVEL}}
Context/Theme: ${{CONTEXT}}

Provide:
1. Pattern explanation and structure
2. Example sentences (10-15)
3. Substitution drills
4. Transformation exercises
5. Question and answer practice
6. Gap-fill exercises
7. Translation exercises
8. Error correction exercises
9. Free production prompts
10. Pattern variations
11. Connected patterns
12. Real-life application examples
13. Answer key with explanations
14. Speaking practice suggestions