かねない => Afraid that N2
Potential, Possibility
すら,ですら => Even A N1
(Not)only , (Not) even
でござる/でございます => By, with… N4
Honorifics
ねばならない => Must A N2
Needs, Requirements
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
んです => Because, by… N4
Situations and Experiences
ね => Requests confirmation from the listener N5
Particles
ですから => Because of A, B N3
Reason, Result, Response
だけではすまない => Doing A is not going to suffice N1
Miscellaneous
[兼「か」]ねて => Also for the purpose of A N1
Miscellaneous
がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
やすい => A is easy to do N4
Verb Suffixes