ADVANCED I. KEY AUXILIARY VERBS

1.AM - 2. DOES - 3. DOESN'T - 4. WON'T - 5. WOULD - 6. HAVEN'T - 7.WON'T - 8. DID - 9. DO - 10. DO - 11.HAD - 12. DOES - 13.DOES - 14. HAVEN'T - 15. DON'T - 16. HAVE - 17. CAN - 18. WON'T - 19. WOULD - 20. DOES