Sure! Here are six sentences about the future of my country using "will," "won't," "might (not)," and "may (not)":

1. In the next decade, our country will invest heavily in renewable energy sources to combat climate change.
2. Many young people might pursue careers in technology and innovation, leading to a more digital economy.
3. Our population may not grow as rapidly as it has in the past due to declining birth rates.
4. The government will likely implement new healthcare policies to improve the well-being of all citizens.
5. Climate change might pose challenges, but our country won’t back down from finding sustainable solutions.
6. In the future, education may focus more on critical thinking and problem-solving skills rather than rote memorization.