I have searched normal internet sites, and have not found data that show what percent of any given written English language sample (not dictionary) is comprised of the verb “to be?” I am seeking either actual statistics, or a program that can scan a sample and identify the verb "to be" in all its forms.
I intended to include both lexical and auxiliary forms. However, given that this may be too broad, I would just like to see any statistics at all on percentage of use of the verb to be
The same goes for different types of written English: I would like samples from varied sources, including time, but will settle for what I uncover. Any piece of this puzzle will be appreciated.