considering that there are 10 letters among the words never,now,she, and you then if we want 74851687 to be a word it must be made of these letters. So I used a program to search for any 8 letter words that use these letters and follow the pattern 74851687 and I could not find any. Then again there may be some words my program missed. Guess its back to the old drawing board.
re(2): some thoughts
