1.one 2.two 3.three 4.four 5.five 6.six 7.seven 8.eight 9.nine 10.ten 11. elven 12. twelve 13. thirteen 14.fourteen 15.fifteen 16. sixteen 17.seventeen 18.eighteen 19.nineteen 20. twenty 21.twenty-one 22. twenty-two 23. twenty-three 24. twenty-four 25. twenty-five 26. twenty-six 27. twenty-seven 28. twenty-eight 29. twenty-nine 30.thirty 31.thirty-one