ちゃんと => Clear, neat, dignified, complete N3
Result status
ちゃんとする => Serious, tidy, complete N3
Result status
ないと/なくちゃ/なきゃ => must do; need to; gotta do ~ N3
なくちゃ => must do; need to; gotta do ~ N3
Necessity, obligation
ないと,なくちゃ => Must do A N3
Needs, Requirement
ちゃった => to do something by accident, to finish completely N3
んじゃなかったか => shouldn't have... N4
Regret
うち (で/ から) => Among, within... N3
Scope
と~と~どちら~か => Comparison N5
Compare
じゃないか => right? isn't it? let's~; confirmation N4
Speculation
じゃないか / ではないか => right? isn't it? N3
Confirm
~なくちゃいけない      => must do; need to; gotta do ~, say necessary to do something N5
Obligatory