か~ないかのうちに => Right after A, C N2
Time, Situation
に[違「ちが」]いない => Without a doubt, A N2
Information, Report
かも[知「し」]れない => Might A, maybe A, perhaps A N3
Sentence Endings
うち/ないうち => While A is the case, B; While A is occuring, B, While A is not occuring, B N3
Conditional, While
そうにない => N2
Potential, Possibility
がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
ないと,なくちゃ => Must do A N3
Needs, Requirement
にほかならない => Only A N2
Reason, Result, Response
[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous
[最中「さいちゅう」] => In the middle of A N3
Time, Situation
に[相違「そうい」]ない => No doubt N2
Information, Report
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”