Not only can I not picture a language without any form of verb whatsoever, but I wouldn't be motivated to research it either. The verb seems like one of those things you just need to have. But check out this page:
http://www.languagehat.com/archives/001327.php
Some Frenchie wrote a book with no verbs, and stated: "The verb is like a weed in a field of flowers," he said. "You have to get rid of it to allow the flowers to grow and flourish."