Irregular Verbs In Japanese: What They Are + Conjugations
The only two irregular verbs in Japanese do not conjugate with any other verb. These types of verbs are including in the third group. Learners only have to memorize the verbs in order to use them properly. The irregular verbs in Japanese language include the following:
Kuru (to come) 来る / Suru (to do) する
The verb suru "する" is the most popular verb in the Japanese language because plenty of Japanese native speakers use this verb all the time; it is used also to mean “to make” and “to cost”. In addition, the verb suru "する" is combined with many Chinese western nouns so as to create verbs. Here is a list of some examples.
Yushutsusuru （輸出する） - to export
Ryokousuru （旅行する） - to travel
Benkyousuru （勉強する） - to study
Dansusuru （ダンスする） - to dance
The list below shows the correct conjugation for these two irregular verbs:
| Irregular Verbs - Kuru - 来る | |||
| English | Kanji | Romaji | |
| Plain present positive | Come | くる | Kuru |
| Plain past positive | Came | きた | Kita |
| Plain present negative | Come | こない | Konai |
| Plain past negative | Did | こなかった | Konakatta |
| Imperative | Come | こい | Koi |
| Volitional | As this / As that | こ よう | Koyou |
| Conjunctive | Come | きて | Kite |
| Conditional | If are sure | く れば | Kureba |
| Irregular Verbs - Suru - する | |||
| English | Kanji | Romaji | |
| Plain present positive | Make | する | Suru |
| Plain past positive | Was, Were | した | Shita |
| Plain present negative | Do not | しない | Shinai |
| Plain past negative | Did | しなかった | Shinakatta |
| Imperative | Case | せよ or しろ | Seyo or Shiro |
| Volitional | Try | しよう | Shiyou |
| Conjunctive | By, And , To | して | Shite |
| Conditional | If, By | すれば | Sureba |
