1. You needn't pay the bill now.
2. He ought to find a better job.
3. He can't be our director
4. You may not participate in this conference.
5. The team might get the first price.
6. He must sign this important document at once.
7. May I help you in your study?
8. They couldn't translate texts without a dictionary.
9. You shouldn't interfere in his business.
10. He can work with computer hardware.