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.
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Notes from Wikiquote
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.