There are three main groups of Japanese verbs.
Verbs ending in "-u" are in the first group, verbs ending in "-iru" or "-eru" are in the second group and the third group contains irregular verbs.
In Japanese, there are only two irregular verbs.
Godan (Consonant stem verbs) All the verbs ending with (い) る or (え) る
Ichidan (Vowel stem verbs) Words ending in: う, く, ぐ, す, つ, ぬ, ぶ, む or る.
Irregular Verbs する (*e.*to do) and来(く)る (*e.*to come).
The conjugation of all the Japanese verbs is the same for all pronouns. (I, you, he, she, we, they). In addition, there are several of verb conjugations including the following: