~に~かい(~に~回)      => Do ~ times in ~ period N5
Frequency
いまさらながら => Still ... now N3
Time
~の) ならべつだが => if it were ~, it would be different, but... N1
Related, corresponding
... だろうが、... だろうが => Whether it's ... or ... N3
Demonstrate by example
なければならない/なくてはならない/なければいけない/なくてはいけない/なければだめ/なくてはだめ => must N5
… とはいいながら => although, even though... N2
Invariant
まだV-られない => Not yet ~ N4
Ability
いずれにしろ => anyhow; anyway; either ... N2
Confirm
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”
ぐらいならむしろ => If...then it would be better... N2
Cause, reason
ていられない => can't afford to; unable to ~ N2
(の) なら~しろ => If..., do something... N3
Condition (hypothetical condition)