こそすれ => B is definitely not so (strongly emphasized) N1
Contrast/Surprise
ばこそ => Because of A N1
Reason, Result, Response
そういえば => Speaking of .., A by the way, A; N2
Considering, Concerning
さえ/にさえ/でさえ => Even N3
Not only, Not even
させて[頂「いただ」]きます/させてもらいます => Allow me to A N1
Miscellaneous
の[末「すえ」]/た[末「すえ」] => conclusion N2
Reason, Result, Response
こそあれ => Although A (A is some negative attribute) N1
Contrast/Surprise
へ => Go to N, head to N , Often followed by verbs like 行く/いく, 来る/くる, 向かう/むかう… N5
Particles
さえ~ば => If only A/B, then C, If only A occurs, then B N2
Conditional, While
ところを/ところに/ところへ => At time/situation A N2
Information, Report
ばそれまでだ => If A happens, it's over (nothing will be of use) N1
Conditional, While
といえば/というと/といったら => N3
Considering, Concerning