ВОЙДИТЕ, ЧТОБЫ НАЧАТЬ ОБУЧЕНИЕ С АУДИО-ЗАПИСЬЮ

Grammar I - 03.01
Basic Verb Conjugation
  There are three categories of verbs in Japanese:  ru-verbs, u-verbs, and irregular verbs.  Ru and u verbs follow regular conjugation:
  Ru-verbs are so called because you add the suffix ru to the verb base to form the dictionary form.
U-verbs can be broken down into the base and the suffix.  The long form are formed with the base plus suffixes imasu and imasen.
  Ru-verb

U-verb

verb bases   tabe ik
  (to eat)   (to go)
dictionary forms

たべる

いく
present, affirmative   たべます いきます
present, negative たべません いきません
stems   たべ いき
   
  There are only two irregular verbs in Japanese:  
する

to do

くる

to come, to arrive

   
  They are conjugated as follows:
dictionary forms  する くる
present, affirmative します きます
present, negative   しません  きません
stems
   
 

It's important to remember which verb belongs to which conjugation class.

  Ru-verb

U-verb

verb bases  

mi

kaer
dictionary forms  みる かえる
present, affirmative みます かえります
present, negative   みません かえりません
stems かえり