Kanji Library
VerbsJLPT N1

口吟む (kuchizusamu) conjugation

JLPT N1 Godan verb (Group 1 / u-verb)transitive (takes を)

to humble

口吟む (くちずさむ, kuchizusamu) is a godan verb. Godan verbs change their final kana up and down its column of the kana chart — the a-row for negatives, the i-row before ます, the e-row for potential and ば. Every form below is tappable — hear it, then say it back.

Conjugation table

FormPlain (casual)Polite (~ます)When you use it
Dictionary / plain
kuchizusamu

kuchizusamimasu
The form you look up. Also the casual present and future.
Plain negative
kuchizusamanai

kuchizusamimasen
“doesn’t / won’t”. From here it conjugates like an i-adjective.
Plain past
kuchizusanda

kuchizusamimashita
The casual past — same ending as the te-form, with た/だ.
Plain past negative
kuchizusamanakatta

kuchizusamimasendeshita
“didn’t”. The negative past, still i-adjective-shaped.
Te-form
kuchizusande
The connector: requests, linking clauses, ~ている.
Progressive (~ている)
kuchizusandeiru

kuchizusandeimasu
“is ~ing”, or an ongoing resulting state.
Desire (~たい)
kuchizusamitai

kuchizusamitaidesu
“want to ~”. Behaves as an i-adjective.
Volitional
kuchizusamou

kuchizusamimashou
“let’s ~” / “I think I’ll ~”.
Potential
kuchizusameru

kuchizusamemasu
“can ~”. What you could do; the object often takes が.
Passive
kuchizusamareru

kuchizusamaremasu
“is ~ed”. Also the honorific and the suffering passive.
Causative
kuchizusamaseru

kuchizusamasemasu
Make or let someone do it.
Causative-passive
kuchizusamasareru

kuchizusamasaremasu
Be made to do it — the long one.
Imperative
kuchizusame

kuchizusandekudasai
Blunt order. Use ~てください in real life.
Prohibitive
kuchizusamuna
“don’t!” — dictionary form + な.
Conditional (~ば)
kuchizusameba
“if ~”. General rules and hypotheticals.
Conditional (~たら)
kuchizusandara
“if / when ~”. The everyday conditional.

🔊 Tap any Japanese word to hear it spoken.

Why it conjugates this way

Godan verbs change their final kana up and down its column of the kana chart — the a-row for negatives, the i-row before ます, the e-row for potential and ば. See the full rules on the verb conjugation guide.

Kanji in this verb

Other JLPT N1 verbs

All JLPT N1 verbs →