1. one

2. two

3. three

4. four

5. five

6. six

7. seven

8. eight

9. nine

10. ten

11. eleven

12. twelve

13. thirteen

14. fourteen

15. fifteen

16. sixteen

17. seventeen

18. eighteen

19. nineteen

20. twenty

这些数字单词涵盖了从1到20的所有基数词。