"A Princess of Mars", by Edgar Rice Burroughs

 Rank  Occurances  Percentage    2-tuple
       (of 63536)
   1        741    1.1662679%    of the
   2        307    0.4831906%    to the
   3        273    0.4296777%    in the
   4        195    0.3069126%    i had
   5        173    0.2722866%    dejah thoris
   6        171    0.2691388%    i was
   7        162    0.2549736%    from the
   8        162    0.2549736%    as i
   9        141    0.2219214%    upon the
  10        141    0.2219214%    that i
  11        141    0.2219214%    of my
  12        133    0.2093301%    and the
  13        129    0.2030345%    and i
  14        117    0.1841476%    i could
  15        116    0.1825737%    at the
  16        110    0.1731302%    of a
  17        108    0.1699824%    for the
  18        103    0.1621128%    with the
  19        101    0.1589650%    it was
  20         95    0.1495215%    tars tarkas
  21         94    0.1479476%    one of
  22         90    0.1416520%    by the
  23         82    0.1290607%    had been
  24         81    0.1274868%    to me
  25         78    0.1227650%    on the
  26         73    0.1148955%    the great
  27         73    0.1148955%    of his
  28         72    0.1133216%    with a
  29         72    0.1133216%    into the
  30         71    0.1117477%    it is
  31         70    0.1101738%    in a
  32         69    0.1085998%    to be
  33         65    0.1023042%    that the
  34         64    0.1007303%    to my
  35         63    0.0991564%    the city
  36         63    0.0991564%    i am
  37         63    0.0991564%    and then
  38         62    0.0975825%    me and
  39         61    0.0960086%    and so
  40         60    0.0944347%    tal hajus
  41         60    0.0944347%    i have
  42         59    0.0928607%    of helium
  43         59    0.0928607%    did not
  44         59    0.0928607%    as the
  45         57    0.0897129%    which i
  46         55    0.0865651%    could not
  47         54    0.0849912%    the green
  48         54    0.0849912%    john carter
  49         53    0.0834173%    the ground
  50         51    0.0802695%    and as
  51         50    0.0786955%    was a
  52         50    0.0786955%    the other
  53         50    0.0786955%    me to
  54         50    0.0786955%    in my
  55         49    0.0771216%    they were
  56         47    0.0739738%    upon me
  57         47    0.0739738%    and with
  58         46    0.0723999%    we were
  59         46    0.0723999%    of her
  60         45    0.0708260%    through the
  61         45    0.0708260%    but i
  62         44    0.0692521%    of their
  63         44    0.0692521%    he was
  64         43    0.0676782%    would have
  65         43    0.0676782%    the first
  66         43    0.0676782%    i saw
  67         42    0.0661043%    toward the
  68         42    0.0661043%    of our
  69         42    0.0661043%    but the
  70         41    0.0645303%    you are
  71         40    0.0629564%    that you
  72         39    0.0613825%    the building
  73         39    0.0613825%    that they
  74         39    0.0613825%    me that
  75         39    0.0613825%    i did
  76         39    0.0613825%    among the
  77         38    0.0598086%    kantos kan
  78         38    0.0598086%    i would
  79         38    0.0598086%    and a
  80         37    0.0582347%    that he
  81         37    0.0582347%    a few
  82         36    0.0566608%    would be
  83         36    0.0566608%    to a
  84         36    0.0566608%    that it
  85         36    0.0566608%    of barsoom
  86         36    0.0566608%    by a
  87         36    0.0566608%    and that
  88         36    0.0566608%    all the
  89         35    0.0550869%    we had
  90         35    0.0550869%    thoris and
  91         35    0.0550869%    the palace
  92         35    0.0550869%    as he
  93         34    0.0535130%    was the
  94         34    0.0535130%    they had
  95         34    0.0535130%    that she
  96         34    0.0535130%    me with
  97         34    0.0535130%    have been
  98         34    0.0535130%    do not
  99         34    0.0535130%    as a
 100         33    0.0519391%    with my