ずじまい => Haven't done A N1
Will, Decision, Doing
ずにすませる => Get something done without doing A N1
Miscellaneous
いかんにかかわらず,いかんによらず => Regardless of A (A is a reason, response, result) N1
Based/focused/depending on
といわず => Not just A, not just B, but N1
(Not)only , (Not) even
はずがない => Cannot be A, should not be A N4
Sentence Endings
ずにはおかない/ないではおかない => Will definitely A, N1
Will, Decision, Doing
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility
に[難「むずか」]くない => It's not hard to A N1
Adjectival, Descriptions
ずに => Without A..ing N4
Verb Suffixes
ずに => Without A..ing N3
Verb Suffixes
ずにはいられない/ないではいられない => Can't help but A; A is unavoidable N2
Will, Decision, “Doing”
~ている。 => Doing something temporarily. N5
Secondary Verbs