と[言「い」]わせれば => On the view of N1
Based/focused/depending on
なければならない => Must do A; have to A N4
Can, Should, Must
てばかりはいられない => Cannot always A N2
Needs, Requirements
ねばならない => Must A N2
Needs, Requirements
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
とあれば => If A N1
Conditional, While
~ながら、 => While A, B N5
Verb suffixes
から[見「み」]れば => If you think from the standpoint of A N2
Considering, Concerning
ともなると,ともなれば => When (the time/situation) A N1
Time, Situation
ながら(も) => Although A, B N2
Contrast,Surprise
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”
ていられない => Cannot continue to A N2
Needs, Requirements