A question about Japanese verbs こんいしわ :) I have a problem with Japanese verbs I know that verbs are divided into 3 groups but how can we get the present,past,negative,stem form and te form of the verbs of each group I mean what is the rule ?

Dina is here ... Introducing myself Hi I am a native Arabic speaker from Egypt I am learning English beside Japanese because I believe that everyone must learn a second language and because I love English and I think that it is very important to learn it I also like to chat with people from different countries Wish me good luck :)