ざるを得ない => cannot help (doing); have no choice but to ~ N2
ざるを[得「え」]ない => Only A is left to do/can be done N2
(Not)only, (Not) even
~をきんじえない(~を禁じ得ない) => can't help but; can't refrain from ~ N1
わざと => on purpose; intentionally ~ N3
ござる/ございます => Have~ N4
Honorifics
わざわざ => to go to the trouble of; to go out of one's way to ~ N3
~いざ~となると / いざ~となれば / いざ~となったら => When it comes to; in such a case; if that happens N1
Evaluate
でござる/でございます => By, with… N4
Honorifics
~きわまる/きわまりない(~極まる/極まりない)      => extremely; very ~ N1
得ない => unable to; cannot; it is not possible to ~ N2
Ability
得る => can; to be able to; is possible to~ N2
使役形 => Causative form N4