すら,ですら => Even A N1
(Not)only , (Not) even
んです => Because, by… N4
Situations and Experiences
おかげで => Because of A, B; Thanks to A, B N3
Reason, Result, Response
げ => Looks A N2
Adjectival, Descriptions
でござる/でございます => By, with… N4
Honorifics
ですから => Because of A, B N3
Reason, Result, Response
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
てあげる => Help, do for N4
Give and take advice
[上「あ」]げる => Just finished/completed A N3
Time, Situation
てさしあげる => Do for N4
Give and take advice
がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
だけではすまない => Doing A is not going to suffice N1
Miscellaneous