Japanese Verb Classification #
- Japanese verbs are categorized into three main groups:
- Group 1 (Godan Verbs): Most verbs, including those ending in various u sounds (and some ending in iru or eru).
- Group 2 (Ichidan Verbs): Verbs ending in iru or eru.
- Group 3 (Irregular Verbs): Includes suru (to do) and kuru (to come).
The Five Bases of Group 1 (Godan) Verbs #
- Group 1 verbs are conjugated by shifting the final Hiragana character through the five vowel sounds (a, i, u, e, o) of the Hiragana chart:
- Base 1 (-a): Negative form. Used with nai (not to do).
- Base 2 (-i): Continuative form. Used with masu (polite non-past/will do).
- Base 3 (-u): Dictionary form. Informal non-past (to do/will do).
- Base 4 (-e): Conditional form. Used with ba (if I do).
- Base 5 (-o): Volitional form. Used for "let's do" something.
Conjugation Patterns by Verb Ending #
- A-column (ending in u): Ka-wa (Negative), Ka-i (Masu), Ka-u (Dictionary), Ka-e (Conditional), Ka-o (Volitional). Note: Verbs ending in a single vowel 'u' change to 'wa' for the negative base.
- Ka-column (ending in ku): Ka-ka, Ka-ki, Ka-ku, Ka-ke, Ka-ko.
- Ga-column (ending in gu): O-yo-ga, O-yo-gi, O-yo-gu, O-yo-ge, O-yo-go.
- Sa-column (ending in su): Ha-na-sa, Ha-na-shi, Ha-na-su, Ha-na-se, Ha-na-so.
- Ta-column (ending in tsu): Ma-ta, Ma-chi, Ma-tsu, Ma-te, Ma-to.
- Ba-column (ending in bu): To-ba, To-bi, To-bu, To-be, To-bo.
- Ma-column (ending in mu): Yo-ma, Yo-mi, Yo-mu, Yo-me, Yo-mo.
- Ra-column (ending in ru): O-ku-ra, O-ku-ri, O-ku-ru, O-ku-re, O-ku-ro.
Summary #
The tutorial explains the fundamental conjugation system for Group 1 (Godan) verbs in Japanese. By following the "five-base" rule, learners can shift the final syllable of a verb through the five Japanese vowel rows (a, i, u, e, o) to create negative, polite, dictionary, conditional, and volitional forms. This systematic approach allows beginners to derive multiple meanings—such as "do not," "will do," "if," and "let's"—from a single stem by simply aligning the verb ending with the corresponding column on the Hiragana chart.
last updated: