てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
に[違「ちが」]いない => Without a doubt, A N2
Information, Report
はずがない => Cannot be A, should not be A N4
Sentence Endings
ようがない => There is no way to do A N2
Potential, Possibility
ながらに,ながらの,ながらにして => While A, during the condition A, Since A (point in time) N1
Time, Situation
ない[方「ほう」]がよい => It would be better to not A N4
Can, Should, Must
~ながら、 => While A, B N5
Verb suffixes
ながら(も) => Although A, B N2
Contrast,Surprise
きりがない => There's no end to A, there's no bounds to A N1
Adjectival, Descriptions
わけがない => There's no reason for A (A should not be possible) N3
Potential, Possibility
~がほしい => I want ~ N5
Asking and Telling
うと~まいと,うが~まいが => Whether or not A (is/occurs) N1
Based/focused/depending on