ねばならない/ねばならぬ/ねば => have to do; must; should ~ N2
ね => isn't it? right? eh? N5
かねない => Afraid that N2
Potential, Possibility
ね => Requests confirmation from the listener N5
Particles
~もようだ(~模様だ)      => look; perhaps; seems N1
ようだったら => If... N2
Condition (hypothetical condition)
かねる => unable to do something; can’t do something N2
ねばならない => Must A N2
Needs, Requirements
ようだ => appears; seems; looks as if ~ N4
よていだ => plan to, intend to N4
Plan
かねない => (someone) might do something; something might happen N2
かのようだ/かのように/かのような => as if; just like ~ N2