Irregular Verbs In Japanese: What They Are + Conjugations

Written byIchika Yamamoto

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
Plain present positiveComeくるKuru
Plain past positiveCameきたKita
Plain present negativeComeこないKonai
Plain past negativeDidこなかったKonakatta
VolitionalAs this / As thatこ ようKoyou
ConditionalIf are sureく ればKureba
Irregular Verbs - Suru - する
Plain present positiveMakeするSuru
Plain past positiveWas, WereしたShita
Plain present negativeDo notしないShinai
Plain past negativeDidしなかったShinakatta
ImperativeCaseせよ or しろSeyo or Shiro
ConjunctiveBy, And , ToしてShite
ConditionalIf, ByすればSureba
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Author: Ichika Yamamoto
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