Составьте 5 отрицательных предложений в present perfect continuous

1. I haven't been studying for my exams as much as I should have.
2. She hasn't been working on her project diligently lately.
3. We haven't been exercising regularly for the past few weeks.
4. They haven't been paying attention to their health and well-being.
5. He hasn't been practicing his guitar skills consistently.