"The Jihad of Imam Shamyl", by Kerim Fenari,
http://www.amina.com/article/jihad_imamshamyl.html

 Rank  Occurances  Percentage    2-tuple
       (of 4944)
   1         36    0.7281553%    of the
   2         35    0.7079288%    in the
   3         28    0.5663430%    the russians
   4         25    0.5056634%    to the
   5         19    0.3843042%    by the
   6         18    0.3640777%    the russian
   7         18    0.3640777%    and the
   8         14    0.2831715%    the caucasus
   9         14    0.2831715%    from the
  10         11    0.2224919%    in NUMBER
  11         10    0.2022654%    the aoul
  12         10    0.2022654%    on the
  13         10    0.2022654%    of a
  14         10    0.2022654%    ghazi mollah
  15          8    0.1618123%    with the
  16          8    0.1618123%    the imam
  17          8    0.1618123%    for the
  18          7    0.1415858%    the great
  19          7    0.1415858%    had been
  20          7    0.1415858%    at the
  21          7    0.1415858%    a russian
  22          6    0.1213592%    the muslims
  23          6    0.1213592%    the murids
  24          6    0.1213592%    that the
  25          6    0.1213592%    shamyl had
  26          6    0.1213592%    of his
  27          6    0.1213592%    into the
  28          6    0.1213592%    he was
  29          6    0.1213592%    as the
  30          6    0.1213592%    against the
  31          5    0.1011327%    under the
  32          5    0.1011327%    to make
  33          5    0.1011327%    to be
  34          5    0.1011327%    to a
  35          5    0.1011327%    through the
  36          5    0.1011327%    they had
  37          5    0.1011327%    the time
  38          5    0.1011327%    the first
  39          5    0.1011327%    the death
  40          5    0.1011327%    the chechen
  41          5    0.1011327%    in their
  42          5    0.1011327%    by a
  43          5    0.1011327%    but the
  44          5    0.1011327%    aoul of
  45          5    0.1011327%    all the
  46          5    0.1011327%    a new
  47          4    0.0809061%    with a
  48          4    0.0809061%    was the
  49          4    0.0809061%    their way
  50          4    0.0809061%    the very
  51          4    0.0809061%    the tsar
  52          4    0.0809061%    the forest
  53          4    0.0809061%    the chechens
  54          4    0.0809061%    the aouls
  55          4    0.0809061%    that his
  56          4    0.0809061%    over the
  57          4    0.0809061%    of this
  58          4    0.0809061%    of daghestan
  59          4    0.0809061%    of all
  60          4    0.0809061%    it was
  61          4    0.0809061%    in his
  62          4    0.0809061%    hundred and
  63          4    0.0809061%    his own
  64          4    0.0809061%    he had
  65          4    0.0809061%    had to
  66          4    0.0809061%    chechenya and
  67          4    0.0809061%    a hundred
  68          3    0.0606796%    years of
  69          3    0.0606796%    women and
  70          3    0.0606796%    with his
  71          3    0.0606796%    wife fatima
  72          3    0.0606796%    who had
  73          3    0.0606796%    when the
  74          3    0.0606796%    way to
  75          3    0.0606796%    upon them
  76          3    0.0606796%    two thousand
  77          3    0.0606796%    to take
  78          3    0.0606796%    to his
  79          3    0.0606796%    to bring
  80          3    0.0606796%    to attack
  81          3    0.0606796%    time the
  82          3    0.0606796%    time of
  83          3    0.0606796%    three hundred
  84          3    0.0606796%    thousand men
  85          3    0.0606796%    they could
  86          3    0.0606796%    them to
  87          3    0.0606796%    their own
  88          3    0.0606796%    the two
  89          3    0.0606796%    the slopes
  90          3    0.0606796%    the shariah
  91          3    0.0606796%    the region
  92          3    0.0606796%    the muslim
  93          3    0.0606796%    the mountains
  94          3    0.0606796%    the most
  95          3    0.0606796%    the highest
  96          3    0.0606796%    the forests
  97          3    0.0606796%    the enemy
  98          3    0.0606796%    the caucasians
  99          3    0.0606796%    the caucasian
 100          3    0.0606796%    the caspian