未み然ぜん形けい

noun

irrealis form

A base form of Japanese verbs and adjectives used with auxiliaries to express negation, causation, passive, and volition. Primarily a grammatical term; learners encounter it when studying conjugation patterns.

• 「書かく」の未み然ぜん形けいは「書かか」です。

  The irrealis form of 書く is 書か.

• 未み然ぜん形けいに「ない」を付つけると否ひ定てい形けいになります。

  Attaching ない to the irrealis form creates the negative form.