いけません

expression

wrong; not good; of no use

Used to express that something is morally wrong, inappropriate, or useless. Often appears in admonishments or when pointing out a mistake.

See also: いけない

• そんなことをしてはいけません。

  You must not do such a thing.

• うそをつくのはいけません。

  Telling lies is wrong.

expression

hopeless; past hope

Describes a situation or person that is beyond help or recovery. Often used with a resigned tone.

See also: いけない

• 彼かれの病びょう気きはもういけません。

  His illness is hopeless now.

expression

must not do

Used in the pattern 〜てはいけません to express prohibition. This is a core grammatical usage.

See also: いけない

• ここで写しゃ真しんを撮とってはいけません。

  You must not take pictures here.

expression

cannot go

Only when written 行けません

Literal negative potential form of 行く (to go). Rarely written with kanji except in this literal sense.

• 明日あしたは用よう事じがあって行いけません。

  I have something to do tomorrow and cannot go.