a useful trick in learning Japanese verbs

Today my Japanese tutor showed me a surprisingly effective matrix trick for learning Japanese.

Japanese verbs have man forms. You can see a list of them here. The basics, however, are only really five or six. What I learned today was a way of ordering them that helps you keep them straight and to in fact remember them.

This system places the "group 1" verbs in a matrix with the alternate endings listed in alphabetical (syllabary?) order as such:

By aligning these verbs through what I call the "pre-suffix" above, you can easily remember the forms..