That is a complete waste of your time and the government's money. You are a native speaker of English; in ten minutes you can produce more illustrations of any point in English grammar than you will find in many millions of words of random text.
Lees's response when informed that Nelson Francis had received a grant to produce the Brown Corpus.
Biber, D., and E. Finegan. 1991. "On the exploitation of computerized corpora in variation studies." In K. Aijmer and B. Altenberg (eds.), English corpus linguistics: Studies in honour of Jan Svartvik, 204-220. London: Longman.