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
ねばならない => Must A N2
Needs, Requirements
~ながら、 => While A, B N5
Verb suffixes
ながら(も) => Although A, B N2
Contrast,Surprise
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
なければならない => Must do A; have to A N4
Can, Should, Must
もし~たなら => If A … N3
Conditional, While
もしも~なら => If A... N3
Conditional, While
てばかりはいられない => Cannot always A N2
Needs, Requirements
~がほしい => I want ~ N5
Asking and Telling
そばから => As soon as A, B N1
Time, Situation
らしい => Seem to~ N4
Sentence Endings