けない
ikenai

i-Adjective
Expression

1. bad; wrong; naughty

Usually Written in Kana
i-Adjective
Expression

2. must not (do, be); should not; ought not to

Usually Written in Kana
このフロッピーをフォーマットしてはいけません。
kono furoppiio fōmatto shitewa ikemasen.
You mustn't format this floppy disk.
i-Adjective
Expression

3. useless; no good; bad

Usually Written in Kana
かれ本人 ほんにん こう人物 じんぶつなんだが、その きがどうもいけないね。
karehonninwa kōjimbutsuna ndaga sono torimakiga dōmo ikenaine.
I really like him, but not his circle of friends.
i-Adjective
Expression

4. hopeless; beyond hope

Usually Written in Kana
i-Adjective
Expression

5. unfortunate; a shame; a pity

Usually Written in Kana
「風邪 かぜ気味 ぎみです」「それはいけませんね」
"kazegimidesu" "sorewa ikemasenne"
"I've a touch of a cold." "That's too bad."
i-Adjective
Expression

6. unable to drink (alcohol)

Usually Written in Kana
i-Adjective
Expression

7. so as not to ...; so that ... (won't); in case ...; for fear that ...; lest ...

Usually Written in Kana
みち まようといけないから、地図 ちずをもって きなさい。
michini mayōto ikenaikara chizuo motte ikinasai.
Take a map with you in case you get lost.