"A Connecticut Yankee in King Arthur's Court", by Mark Twain

 Rank  Occurances  Percentage    1-tuple
       (of 119092)
   1       6089    5.1128539%    the
   2       5547    4.6577436%    and
   3       3241    2.7214255%    a
   4       3198    2.6853189%    of
   5       2992    2.5123434%    to
   6       2506    2.1042555%    i
   7       2224    1.8674638%    it
   8       2134    1.7918920%    was
   9       1923    1.6147180%    that
  10       1823    1.5307493%    in
  11       1123    0.9429685%    he
  12       1029    0.8640379%    for
  13        915    0.7683136%    had
  14        911    0.7649548%    but
  15        896    0.7523595%    his
  16        875    0.7347261%    with
  17        827    0.6944211%    as
  18        812    0.6818258%    you
  19        810    0.6801464%    is
  20        768    0.6448796%    they
  21        725    0.6087730%    my
  22        714    0.5995365%    not
  23        659    0.5533537%    be
  24        644    0.5407584%    this
  25        616    0.5172472%    me
  26        609    0.5113694%    all
  27        596    0.5004534%    were
  28        595    0.4996137%    him
  29        585    0.4912169%    we
  30        576    0.4836597%    so
  31        540    0.4534310%    would
  32        533    0.4475532%    on
  33        528    0.4433547%    there
  34        526    0.4416753%    at
  35        507    0.4257213%    by
  36        495    0.4156450%    have
  37        484    0.4064085%    out
  38        443    0.3719813%    one
  39        430    0.3610654%    no
  40        417    0.3501495%    then
  41        404    0.3392335%    said
  42        395    0.3316764%    up
  43        381    0.3199207%    them
  44        380    0.3190810%    could
  45        363    0.3048064%    or
  46        357    0.2997682%    an
  47        356    0.2989286%    sir
  48        356    0.2989286%    her
  49        354    0.2972492%    when
  50        354    0.2972492%    from
  51        350    0.2938904%    she
  52        341    0.2863333%    what
  53        338    0.2838142%    if
  54        334    0.2804554%    their
  55        323    0.2712189%    will
  56        318    0.2670205%    time
  57        308    0.2586236%    king
  58        289    0.2426695%    are
  59        286    0.2401505%    well
  60        280    0.2351124%    which
  61        280    0.2351124%    now
  62        279    0.2342727%    about
  63        269    0.2258758%    do
  64        265    0.2225170%    these
  65        245    0.2057233%    thing
  66        241    0.2023646%    any
  67        240    0.2015249%    man
  68        239    0.2006852%    good
  69        236    0.1981661%    been
  70        226    0.1897693%    see
  71        222    0.1864105%    your
  72        220    0.1847311%    into
  73        218    0.1830518%    its
  74        206    0.1729755%    down
  75        203    0.1704565%    other
  76        201    0.1687771%    how
  77        192    0.1612199%    way
  78        192    0.1612199%    upon
  79        191    0.1603802%    who
  80        191    0.1603802%    like
  81        188    0.1578611%    some
  82        188    0.1578611%    know
  83        186    0.1561818%    made
  84        182    0.1528230%    get
  85        178    0.1494643%    us
  86        177    0.1486246%    ye
  87        175    0.1469452%    our
  88        175    0.1469452%    more
  89        170    0.1427468%    came
  90        168    0.1410674%    got
  91        167    0.1402277%    only
  92        164    0.1377087%    come
  93        162    0.1360293%    just
  94        161    0.1351896%    NUMBER
  95        159    0.1335102%    people
  96        157    0.1318309%    right
  97        154    0.1293118%    little
  98        154    0.1293118%    day
  99        152    0.1276324%    did
 100        149    0.1251134%    never