こそすれ => B is definitely not so (strongly emphasized) N1
Contrast/Surprise
とあれば => If A N1
Conditional, While
ばこそ => Because of A N1
Reason, Result, Response
ことにする => Decide to N4
Causative, Passive, Volitional
をもって(すれば) => With the means/ability/strength A, B is done, A marks the end of something happening (polite) N1
Miscellaneous
をもって(すれば) => With the means/ability/strength A, B is done, A marks the end of something happening (polite) N1
Time, Situation
と[言「い」]わせれば => On the view of N1
Based/focused/depending on
てばかりはいられない => Cannot always A N2
Needs, Requirements
から[見「み」]れば => If you think from the standpoint of A N2
Considering, Concerning
なければならない => Must do A; have to A N4
Can, Should, Must
こそあれ => Although A (A is some negative attribute) N1
Contrast/Surprise
ともなると,ともなれば => When (the time/situation) A N1
Time, Situation