じゃありません => not to be N5
Emphasize negative meaning
~のぼる  => To increase N2
Reach level
んじゃ => If ... then... N4
Condition (hypothetical condition)
じゃありませんでした => was not, were not N5
Emphasize negative meaning
... おぼえはない => don't remember... N3
Position, perspective
そうじゃありません => Not like that, Not that way N5
Confirm
んじゃない => can not, impossible to... N4
Ban
...なりなんなり... => any,anything,whatever N1
Vague
んじゃなかったか => shouldn't have... N4
Regret
んじゃないか => right? isn't it? let's~; confirmation N4
Confirm
~をきんじえない(~を禁じ得ない) => can't help but; can't refrain from ~ N1
んじゃない => confirmation of information; express surprise towards listener N4
Speculation