~がほしい => I want ~ N5
Asking and Telling
もしも~なら => If A... N3
Conditional, While
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
ながら(も) => Although A, B N2
Contrast,Surprise
したがって => Because of A, B N2
Reason, Result, Response
もし~としても => Even if A... (chances of A are pretty low) N3
Not only, Not even
まだしも => A is acceptable, N2
Comparison, Exchange
もし~たなら => If A … N3
Conditional, While
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
しかも => Not only A, but B as well N2
(Not)only, (Not) even
をもとに/をもとにして => A as a basis for B N2
Based, Focused, Depending on
もしないで => Even though (subject) doesn't/don't A N1
Contrast/Surprise