じゃありませんでした => was not, were not N5
Emphasize negative meaning
なけりゃ => If not ... N2
Condition (hypothetical condition)
じゃありません => not to be N5
Emphasize negative meaning
ゃしない => Don't/Doesn't A (at all) N1
Will, Decision, Doing
~じゃ(では)あるまいし => isn't it; I wonder if it's not ~ N1
Invite and advise
あまり~ない => Not very ~ N5
Amount
あまり~ない => not very, not much ~ N5
そうじゃありません => Not like that, Not that way N5
Confirm
ないと/なくちゃ/なきゃ => must do; need to; gotta do ~ N3
限りがある/ない => is limited, has boundary N2
Limit, limit
じゃ(あ) / では => Then, so (Expressing attitude) N5
Change the way you speak
じゃないが => It's not that... but... N4
How to say the beginning