Are you a teacher of English, especially at the middle- or high-school level?
Here is a great blog on various forms of waking. The site itself (http://dailypost.wordpress.com) has great articles for helping decipher the rules of irregular verbs, containing items often infused with a substantial amount of humor.
Being grammatically challenged myself, I find this to be a really helpful and amusing site for my continued edification!
Click on the link above, or copy and paste the URL below into your browser:
However you get there, enjoy!!