Kanji Library
AdjectivesJLPT N1

ぺこぺこ (pekopeko) conjugation

JLPT N1 na-adjective (形容動詞)

fawn, be very hungry

ぺこぺこ (ぺこぺこ, pekopeko) is a na-adjective. Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun.

Conjugation table

FormPlain (casual)Polite (~です)When you use it
Dictionary / plain
pekopekoda

pekopekodesu
The form you look up. Also the casual “is ~”.
Negative
pekopekojanai

pekopekojanaidesu
“is not ~”.
Past
pekopekodatta

pekopekodeshita
“was ~”.
Past negative
pekopekojanakatta

pekopekojanakattadesu
“was not ~”.
Te-form
pekopekode
Links to the next clause: “~ and …”.
Adverb
pekopekoni
Turns it into “~ly”, describing a verb.
Before a noun
pekopekona〜
How it attaches when it modifies a noun.
Conditional (~ば/なら)
pekopekonara
“if it is ~”.
Conditional (~たら)
pekopekodattara
“if / when it is ~”. The everyday conditional.
Become (~なる)
pekopekoninaru

pekopekoninarimasu
“becomes ~” — the change-of-state form.
Too much (~すぎる)
pekopekosugiru

pekopekosugimasu
“too ~”.
Looks ~ (~そう)
pekopekosou

pekopekosoudesu
“looks / seems ~” from appearance.

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Why it conjugates this way

Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun. See the full rules in the adjective conjugation guide.

Other JLPT N1 adjectives

All JLPT N1 adjectives →