~のを => Nominalize verbs N5
Nominalization
…ばあいをのぞいて => Except for N2
Exception
~をきんじえない(~を禁じ得ない) => can't help but; can't refrain from ~ N1
のを知っていますか => Do you know...? N4
をおいて~ない => Other than A, B N1
(Not)only , (Not) even
出す => to begin to; to start to; to burst into; ... out (e.g. to jump out, to carry out)​ N4
... ないものは ...ない => is not entirely impossible N3
Ability
なかを => In this situation... N5
Base, base
~すればいいものを => if only (someone) would do (something), should have done (something) N1
Criticize
ものを => Although A, (unfortunate result) B N1
Contrast/Surprise
…の…ないの => thinking whether or not to do something... N2
Position, perspective
~ものを      => But, Although, If only, I wish I had N1