仮定形(かていけい)

かていけい
noun
hypothetical form
language
1. hypothetical form; the conditional conjugation form of Japanese verbs and adjectives, used with ~ば to express 'if'
A term from Japanese school grammar for the form of a verb or adjective that takes ば to make an "if" clause, such as 書(か)け in 書(か)けば.
「行(い)く」の仮定形(かていけい)は「行(い)けば」だ。
The hypothetical form of 'iku' is 'ikeba.'
Let's practice how to form the hypothetical form.
日本語(にほんご)の動詞(どうし)には六(むっ)つの活用形(かつようけい)があり、仮定形(かていけい)はそのうちの一(ひと)つだ。
Japanese verbs have six conjugation forms, and the hypothetical form is one of them.

A grammatical term used in Japanese language education. In the traditional six-form conjugation system (活用(かつよう)), the 仮定形(かていけい) is the form that attaches to the conditional particle ば. For godan verbs, this is the え-row form (e.g., 書(か)く → 書(か)けば); for ichidan verbs, it ends in れば (e.g., 食(た)べる → 食(た)べれば).

The six conjugation forms

Similar words

  • 条件形(じょうけんけい) — conditional form (an alternative name sometimes used in textbooks)
  • 已然形(いぜんけい) — realis form (the classical Japanese predecessor of the 仮定形(かていけい))