には[及「およ」]ばない => There is no need to A N1
Need/Requirements
及び => and; as well as ~ N2
には[及「およ」]ばない => There is no need to A, Doesn't reach the level/ability A; can't compete with A N1
Comparison/ Exchange
ねばならない/ねばならぬ/ねば => have to do; must; should ~ N2
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
ねばならない => Must A N2
Needs, Requirements
~てはばからない      => reckless; fearless … N1
..... ばかりもいられない => can't keep doing ~ N2
Speculation
ばかりはいられない => can’t keep doing ~ N2
なければ ~ない => must do something; have to do something N4
Conditions (necessary conditions)
といいなあ/たらいいなあ/ばいいなあ => it would be nice if; should; I hope ~ N3
~ ば/たら~かもしれない => If only... then... N2
Regret