四段活用

Japanese

Kanji in this term
四	段	活	用

Etymology

A compound of 四段 (yodan, “four grades”) and 活用 (katsuyō, “conjugation”).

Noun

四段活用 (hiragana よだんかつよう, romaji yodan katsuyō)

1. (grammar) quadrigrade conjugation; a verbal conjugation class consisting of four alternating bases: -a, -i, -u, -e. Examples:

	Irrealis	Adverbial	Conclusive	Attributive	Realis	Imperative
sak-	sak-a	sak-i	sak-u	sak-u	sak-e2	sak-e1
kak-	kak-a	kak-i	kak-u	kak-u	kak-e2	kak-e1
yom-	yom-a	yom-i	yom-u	yom-u	yom-e2	yom-e1

See also

• 五段活用 (godan katsuyō)

Related terms

• 五段活用 (godan katsuyō)
• 下一段活用 (shimo ichidan katsuyō)
• 下二段活用 (shimo nidan katsuyō)
• 上一段活用 (kami ichidan katsuyō)
• 上二段活用 (kami nidan katsuyō)
• カ行変格活用 (kagyō henkaku katsuyō)
• サ行変格活用 (sagyō henkaku katsuyō)
• ナ行変格活用 (nagyō henkaku katsuyō)
• ラ行変格活用 (ragyō henkaku katsuyō)