Nihoner

こん

kon

JLPT N1 verb 未然形

is the negative stem of こる — to congeal, to gelatinize, to jellify, to jell, to gell, to freeze.

  • to become stiff (of muscles)
  • to get absorbed in, to develop a passion for, to devote oneself to, to become obsessed with, to get hooked on
Full entry for

How it’s built

こる こん

Negative stem (). Never used alone — it is the base for ない (not), れる/られる (passive), せる/させる (causative): 書か → 書かない.

This spelling is the version with ん (sound change before で/だ): 読ん → 読んで.

こる is a godan verb (u-verb), so it follows that pattern.

Name that form

Three more forms of . Can you tell what each one is?

Every form of

Polite こります
Polite negative こりません
Polite past こりました
Polite past negative こりませんでした
Let us ~ こりましょう
Masu-stem こり
Want to ~ こりたい
While ~ing こりながら
Te-form こって
Plain past こった
Tara-conditional こったら
Progressive こっている
Plain negative こらない
Plain past negative こらなかった
Negative te-form こらなくて
Potential これる
Ba-conditional これば
Imperative これ
Volitional ころう
Passive こられる
Causative こらせる
Causative-passive こらされる

Drill every form in the Conjugation Dojo →

In real sentences

I bought an umbrella at the convenience store.

Nihoner sentence bank

I send photos from the camera to the computer.

Nihoner sentence bank

I go to the convenience store.

Nihoner sentence bank

Other forms and spellings

こりゃころっころふこるこッコルゴル
negative stem of こる