... 前に => Before ... N4
Relationship before and after
... 前に => ... in front of, before N4
Relationship before and after
前に => before; in front of ~ N5
を前提に => On the premise of N1
Premise
手前 => considering; before; in front of; one’s standpoint N1
~[前「まえ」]に => Before N/Vる(occurs/happens) N5
Time
当然だ/当たり前だ => natural; as a matter of course N2
しかし => But, nevertheless N5
Change the subject of the story
もし~としても/もし~としたって => Assuming; Even if ~ N3
し~し => and; and what's more ~ (emphasis) N4
...し, ...し, (それで) ... => Because... and..., so... N4
List
しかしながら => however, nevertheless N2
Things do not match the prediction