Katsuyo

な-adjective

危険きけん

kiken

danger · N4

危険 (きけん, kiken) — danger — is a -adjective: 危険だった (past), 危険じゃない (negative), 危険で (te-form), 危険です (polite).

It also means peril; hazard.

How 危険 conjugates · -adjective

Nothing drops: the ending attaches to the whole word.

A -adjective is a noun-like word plus a copula, and the copula is what conjugates.

危険 whole word + ending
危険だった危険だったpast · It was dangerous. 危険じゃない危険じゃないnegative · It isn't dangerous. 危険危険te-form · It's dangerous and … 危険なら危険ならif · If it's dangerous, ... 危険です危険ですpolite present · It's dangerous.

Before a noun it takes , which is what names the class.

N5 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

FormConjugationAudio
present N5 It's dangerous. 危険だ きけんだ kikenda
past N5 It was dangerous. 危険だった きけんだった kikendatta
negative N5 It isn't dangerous. 危険じゃない きけんじゃない kikenjanai
te-form N5 It's dangerous and … 危険で きけんで kikende
past negative N4 It wasn't dangerous. 危険じゃなかった きけんじゃなかった kikenjanakatta
cond. なら N3 If it's dangerous, ... 危険なら きけんなら kikennara
cond. たら N3 危険だったら きけんだったら kikendattara

POLITE

FormConjugationAudio
present N5 It's dangerous. 危険です きけんです kikendesu
past N5 It was dangerous. 危険でした きけんでした kikendeshita
negative N5 It isn't dangerous. 危険じゃないです きけんじゃないです kikenjanaidesu
past negative N4 It wasn't dangerous. 危険じゃなかったです きけんじゃなかったです kikenjanakattadesu