"Persuasion", by Jane Austen (1818)

 Rank  Occurances  Percentage    2-tuple
       (of 79618)
   1        425    0.5337989%    of the
   2        378    0.4747670%    to be
   3        322    0.4044312%    in the
   4        255    0.3202793%    had been
   5        227    0.2851114%    she had
   6        220    0.2763194%    it was
   7        191    0.2398955%    he had
   8        176    0.2210555%    to the
   9        170    0.2135196%    captain wentworth
  10        164    0.2059836%    she was
  11        148    0.1858876%    could not
  12        147    0.1846316%    mr elliot
  13        134    0.1683036%    he was
  14        128    0.1607677%    of her
  15        127    0.1595117%    all the
  16        125    0.1569997%    i have
  17        123    0.1544877%    i am
  18        118    0.1482077%    lady russell
  19        117    0.1469517%    have been
  20        114    0.1431837%    she could
  21        113    0.1419277%    sir walter
  22        112    0.1406717%    of his
  23        112    0.1406717%    and the
  24        109    0.1369037%    they were
  25        109    0.1369037%    for the
  26         96    0.1205757%    that he
  27         95    0.1193198%    to her
  28         95    0.1193198%    on the
  29         95    0.1193198%    did not
  30         94    0.1180638%    to have
  31         91    0.1142958%    a very
  32         90    0.1130398%    of a
  33         89    0.1117838%    would be
  34         87    0.1092718%    it is
  35         83    0.1042478%    that she
  36         83    0.1042478%    in a
  37         82    0.1029918%    was a
  38         81    0.1017358%    not be
  39         81    0.1017358%    at the
  40         80    0.1004798%    the same
  41         76    0.0954558%    was not
  42         75    0.0941998%    such a
  43         74    0.0929438%    there was
  44         72    0.0904318%    by the
  45         72    0.0904318%    and i
  46         69    0.0866638%    and she
  47         69    0.0866638%    a little
  48         67    0.0841518%    but i
  49         65    0.0816398%    must be
  50         65    0.0816398%    as she
  51         65    0.0816398%    a great
  52         64    0.0803838%    had not
  53         63    0.0791278%    with the
  54         63    0.0791278%    as to
  55         62    0.0778718%    to see
  56         62    0.0778718%    her own
  57         62    0.0778718%    from the
  58         61    0.0766158%    it would
  59         60    0.0753598%    would have
  60         60    0.0753598%    with a
  61         59    0.0741038%    and a
  62         58    0.0728478%    mrs smith
  63         58    0.0728478%    at all
  64         57    0.0715919%    mrs clay
  65         56    0.0703359%    mrs musgrove
  66         56    0.0703359%    in her
  67         56    0.0703359%    for a
  68         55    0.0690799%    would not
  69         54    0.0678239%    of it
  70         53    0.0665679%    was the
  71         52    0.0653119%    to make
  72         52    0.0653119%    captain benwick
  73         52    0.0653119%    and mrs
  74         51    0.0640559%    more than
  75         50    0.0627999%    that i
  76         49    0.0615439%    they had
  77         49    0.0615439%    she would
  78         49    0.0615439%    in his
  79         49    0.0615439%    do not
  80         48    0.0602879%    the first
  81         48    0.0602879%    of being
  82         48    0.0602879%    i was
  83         47    0.0590319%    he is
  84         47    0.0590319%    as a
  85         46    0.0577759%    was to
  86         46    0.0577759%    the other
  87         46    0.0577759%    should be
  88         46    0.0577759%    but she
  89         46    0.0577759%    anne was
  90         45    0.0565199%    miss elliot
  91         45    0.0565199%    and he
  92         45    0.0565199%    and anne
  93         44    0.0552639%    so much
  94         44    0.0552639%    her father
  95         44    0.0552639%    as he
  96         43    0.0540079%    with her
  97         43    0.0540079%    of their
  98         43    0.0540079%    might be
  99         43    0.0540079%    i should
 100         43    0.0540079%    i do