んじゃない
can not, impossible to...
JLPT
N4
結構
V-る + んじゃない
意義
Used to prohibit the listener's behavior. Often spoken with a lowering tone at the end of the sentence. It is spoken language, often used by men. Women often use the polite form "んじゃありません".
教室
kyoushitsu
で
de
携帯
keitai
を
wo
使
tsuka
うんじゃない
unjanai
。
.
Don't use your cell phone in the classroom.
博物館
hakubutsukan
で
de
展示品
tenjihin
を
wo
触
sawa
るんじゃない
runjanai
。
.
Don't touch the exhibits at the museum.
