可能形 => Potential form N4
[可能系「かのうけい」] => Can, be able to, be possible to N4
Can, Should, Must
もし~たら/もし~ば => if; in the case; supposing ~ N5
~ ば/たら~かもしれない => If only... then... N2
Regret
~ ば/たら~かもしれない => If...then maybe... N3
Condition (hypothetical condition)
もしも~なら => If A... N3
Conditional, While
もしも~なら/ もしも~たら/ もしも~ても => if; in the case; supposing ~/If... no matter what N3
ねばならない/ねばならぬ/ねば => have to do; must; should ~ N2
もし~たなら => If A … N3
Conditional, While
..... ばかりもいられない => can't keep doing ~ N2
Speculation
もし~たなら => if; in the case; supposing ~ N3
もしかすると/もしかしたら~かもしれない => perhaps; maybe; perchance; by any chance ~ N3