Answer:

1. I may or may not abide by the law.

2. I can teach you to play guitar.

3. I could restart if you want to.

4. I have to finish everything before it's too late.

5. I must study for the prelim is coming.

6. I can't just go back to you for saying you're sorry for cheating, I know my worth.

7. I mustn't let dad know my sister's agenda.

8. I think I should, it's getting creepy in here.

9. I must get my hair done before my date.

10. My mom ought to eat lots of healthy foods like fruits and vegetables every morning.