MY FAVORITE WORDS (3 OR FEWER LETTERS)

there are 1200+ english words 3 letters or less. i like mostly the articles and prepositions. i think i got them all but suggestions welcome
  1. hey
    best interjection, nay, best word?
  2. hi
  3. the
  4. a
    & an
  5. oh
    my favorite non-greeting interjection (and one of the best pop vocalisms)
  6. yes
  7. no
  8. do
  9. and
  10. or
  11. it
  12. go
  13. if
  14. by
  15. is
  16. of
  17. now
  18. you
  19. to
  20. at
    better known as @
  21. run
  22. out
  23. but
  24. nth
    only 3-letter word with no vowels. not actually sure that's true. regardless it's a fun fact
  25. so
  26. bye
  27. off
  28. on
  29. lol
    lol is a word. it's [current year].
  30. for
  31. be
  32. get
  33. why
  34. who
  35. sesquipedalian
    lol jk :) punk'd, as @bjnovak would say