Godan verb (む)

凹むへこむ

hekomu

to be dented · N2

凹む (へこむ, hekomu) — to be dented — is a godan verb ending in む: 凹んで (te-form), 凹んだ (past), 凹まない (negative), 凹みます (polite).

It also means to be indented; to yield.

How 凹む conjugates · godan む-verb

Only the last kana changes: む becomes ま, み, め or も.

Which one depends on the ending. The five are one line of the hiragana chart — same consonant, vowels あ・い・う・え・お — and everything before that kana never changes.

ま凹まないnegative

み凹みますpolite present

む凹むdictionary form

め凹めるpotential凹めばif

も凹もうvolitional

The て and た forms · む → んで, んだん凹んでte-form凹んだpast

The て and た forms are the only two that don't follow this pattern. Every む-, ぶ- and ぬ-verb has the same んで there.

N1 N tags give the JLPT level at which the game starts quizzing a form.

Aa Dimmed forms are too rare in everyday Japanese for the game to quiz.

PLAIN

Form	Conjugation	Audio
present	凹むへこむ hekomu
past It got dented.	凹んだへこんだ hekonda
negative It doesn't get dented.	凹まないへこまない hekomanai
te-form It gets dented and …	凹んでへこんで hekonde
past negative It didn't get dented.	凹まなかったへこまなかった hekomanakatta
volitional	凹もうへこもう hekomou
potential	凹めるへこめる hekomeru
cond. ば If it gets dented, ...	凹めばへこめば hekomeba
cond. たら When it gets dented, ...	凹んだらへこんだら hekondara
passive	凹まれるへこまれる hekomareru
causative I make it dent.	凹ませるへこませる hekomaseru
imperative N1	凹めへこめ hekome

POLITE

Form	Conjugation	Audio
present	凹みますへこみます hekomimasu
past It got dented.	凹みましたへこみました hekomimashita
negative It doesn't get dented.	凹みませんへこみません hekomimasen
past negative It didn't get dented.	凹みませんでしたへこみませんでした hekomimasendeshita
volitional	凹みましょうへこみましょう hekomimashou

ASPECT

Form	Conjugation	Audio
ている It's dented.	凹んでいるへこんでいる hekondeiru
ていた It was dented.	凹んでいたへこんでいた hekondeita
ています It's dented.	凹んでいますへこんでいます hekondeimasu
ていました It was dented.	凹んでいましたへこんでいました hekondeimashita