See the following links for a description of the two corpora:
LCMC: http://www.ling.lancs.ac.uk/corplang/lcmc/
LLSCC: http://www.ling.lancs.ac.uk/corplang/llscc/
As the original concordances from LLSCC are too extensive, I have truncated the concordances, keeping 10 tokens (including punctuations) on each side of the search word. The edited file is now available for download at the above posting.