ねばならない/ねばならぬ/ねば => have to do; must; should ~ N2
ねばならない => Must A N2
Needs, Requirements
ね => isn't it? right? eh? N5
... とすれば => point of view N2
Position, perspective
かねない => Afraid that N2
Potential, Possibility
ね => Requests confirmation from the listener N5
Particles
... を... とすれば/ ... が... だとすれば => in the case of~; assuming~; if A then B (conditional) N2
Consider it
ばかりです => only; just ~ (speaker's feeling) N4
Time
だとすれば => in the case of N2
Deduce
~仮に...とすれば / としたら / とする => ~If..., suppose... N1
Condition (hypothetical condition)
かねる => unable to do something; can’t do something N2
かねない => (someone) might do something; something might happen N2