[兼「か」]ねて => Also for the purpose of A N1
Miscellaneous
ねばならない/ねばならぬ/ねば => have to do; must; should ~ N2
かねない => Afraid that N2
Potential, Possibility
ねばならない => Must A N2
Needs, Requirements
かねない => (someone) might do something; something might happen N2
ね => isn't it? right? eh? N5
ね => Requests confirmation from the listener N5
Particles
かねる => unable to do something; can’t do something N2
だけしか~ない => only N3
しか~ない => only; nothing but N4
なくして(は)~ない => cannot do without ~ N1
たしかに/なるほど~かもしれない => might; perhaps N3
Speculation