ねばならない => Must A N2
Needs, Requirements
そばから => As soon as A, B N1
Time, Situation
といえば/というと/といったら => N3
Considering, Concerning
てばかりはいられない => Cannot always A N2
Needs, Requirements
~ば => If~ N4
Conditional
なければならない => Must do A; have to A N4
Can, Should, Must
から[見「み」]れば => If you think from the standpoint of A N2
Considering, Concerning
からすると => Considering A... N2
Considering, Concerning
べからざる => Cannot A N1
Potential, Possibility
ともなると,ともなれば => When (the time/situation) A N1
Time, Situation
からある,からの => Over A (stresses large amounts) N1
Degree/ Level/Amount
ばこそ => Because of A N1
Reason, Result, Response