~ぬばかり => As if; as though N1
Situation
...ぬ => Not (Negative) N3
Emphasize negative meaning
ねばならない/ねばならぬ/ねば => have to do; must; should ~ N2
~ぬうちに => While not....; before... N1
Time
ぬきにして/~ぬきで => Exclude A; Stop/end A; Without A N2
Miscellaneous
~ぬまに => without one's knowledge, without noticing N1
Time
ぬく => Do A until the end/last N2
Will, Decision, “Doing”
~とも~ともつかぬ/ともつかない      => whether A or B (shows doubt or uncertainty between the two things) N1
からすると/からすれば/からしたら => judging from; considering; by the look of ~ N2
ぬまでも => not to say; although it does not reach the level of ~ N1
Description
…からか/…せいか/…のか => perhaps because ~. N3
Cause, reason
からある/からする/からの => at least; as much as; as many as ~ N1