[chryuop]

Actually in wester teaching system (about Japanese language of course) many times you hear of the 4 main forms of the verb. I am not sure if in Japan they teach the same way...but I think it ends up to be confusing this way. I am for teaching all 6 of them and not introducing the remaining two as "irregularity". I still remember the first text book I bought, when it introduced the godan verb and showed 4 forms I immediately wondered why calling it godan then???