"The Land That Time Forgot", by Edgar Rice Burroughs

 Rank  Occurances  Percentage    2-tuple
       (of 35495)
   1        383    1.0790252%    of the
   2        140    0.3944217%    to the
   3        139    0.3916045%    in the
   4        107    0.3014509%    it was
   5         96    0.2704606%    and i
   6         92    0.2591914%    i had
   7         90    0.2535568%    i was
   8         84    0.2366530%    and the
   9         79    0.2225666%    of a
  10         74    0.2084801%    from the
  11         71    0.2000282%    upon the
  12         71    0.2000282%    as i
  13         71    0.2000282%    and then
  14         70    0.1972109%    we had
  15         70    0.1972109%    had been
  16         65    0.1831244%    that i
  17         64    0.1803071%    we were
  18         59    0.1662206%    into the
  19         57    0.1605860%    at the
  20         53    0.1493168%    von schoenvorts
  21         52    0.1464995%    for the
  22         49    0.1380476%    toward the
  23         49    0.1380476%    i saw
  24         48    0.1352303%    the girl
  25         47    0.1324130%    one of
  26         47    0.1324130%    i could
  27         45    0.1267784%    with the
  28         45    0.1267784%    with a
  29         45    0.1267784%    was a
  30         45    0.1267784%    there was
  31         45    0.1267784%    that we
  32         44    0.1239611%    to me
  33         43    0.1211438%    have been
  34         40    0.1126919%    to be
  35         38    0.1070573%    that the
  36         38    0.1070573%    on the
  37         37    0.1042400%    was the
  38         37    0.1042400%    the NUMBER
  39         35    0.0986054%    in a
  40         34    0.0957881%    the deck
  41         34    0.0957881%    i have
  42         34    0.0957881%    but i
  43         33    0.0929708%    then i
  44         32    0.0901535%    of us
  45         31    0.0873362%    the first
  46         31    0.0873362%    on deck
  47         31    0.0873362%    by the
  48         31    0.0873362%    all the
  49         30    0.0845189%    that it
  50         28    0.0788843%    she was
  51         28    0.0788843%    of my
  52         28    0.0788843%    me and
  53         27    0.0760671%    the water
  54         27    0.0760671%    the sea
  55         27    0.0760671%    that she
  56         27    0.0760671%    i am
  57         27    0.0760671%    he had
  58         27    0.0760671%    did not
  59         26    0.0732498%    when i
  60         26    0.0732498%    out of
  61         26    0.0732498%    it is
  62         26    0.0732498%    as we
  63         26    0.0732498%    and that
  64         26    0.0732498%    and so
  65         25    0.0704325%    to my
  66         25    0.0704325%    the same
  67         25    0.0704325%    must have
  68         25    0.0704325%    for a
  69         25    0.0704325%    and we
  70         23    0.0647979%    which i
  71         23    0.0647979%    to a
  72         23    0.0647979%    they were
  73         23    0.0647979%    the face
  74         23    0.0647979%    of our
  75         23    0.0647979%    a moment
  76         22    0.0619806%    we could
  77         22    0.0619806%    the thing
  78         22    0.0619806%    the men
  79         22    0.0619806%    the cliffs
  80         22    0.0619806%    that he
  81         22    0.0619806%    of them
  82         22    0.0619806%    it had
  83         22    0.0619806%    could not
  84         22    0.0619806%    but the
  85         21    0.0591633%    i did
  86         21    0.0591633%    at last
  87         20    0.0563460%    us and
  88         20    0.0563460%    there were
  89         20    0.0563460%    he was
  90         20    0.0563460%    deck and
  91         19    0.0535287%    was to
  92         19    0.0535287%    she had
  93         19    0.0535287%    as the
  94         19    0.0535287%    and as
  95         18    0.0507114%    up the
  96         18    0.0507114%    the conning-tower
  97         18    0.0507114%    that they
  98         18    0.0507114%    me that
  99         18    0.0507114%    in my
 100         18    0.0507114%    had not