"English can look very different, when viewed through different prisms. "The" is the universal ranking champion, but "be" might place second or 22nd, depending on whether all conjugations, such as "is" and "was," get counted. "I" was the most commonly used word in 11,700 10-minute conversations recorded in 2002 and 2003. It appeared 984,359 times, according to David Graff, the lead programmer analyst for the Linguistic Data Consortium at the University of Pennsylvania, which maintains corpora. "You" was runner-up, appearing 702,941 times."
Check out this article on the 100-most used words in the English language...it's all relative!