ござる/ございます => Have~ N4
Honorifics
べからざる => Cannot A N1
Potential, Possibility
でござる/でございます => By, with… N4
Honorifics
ねばならない => Must A N2
Needs, Requirements
といえば/というと/といったら => N3
Considering, Concerning
てばかりはいられない => Cannot always A N2
Needs, Requirements
ならいざしらず => I don't know about A, but B, It may be possible for A, but B N1
Potential, Possibility
させて[頂「いただ」]きます/させてもらいます => Allow me to A N1
Miscellaneous
なければならない => Must do A; have to A N4
Can, Should, Must
さえ~ば => If only A/B, then C, If only A occurs, then B N2
Conditional, While
そばから => As soon as A, B N1
Time, Situation
ざる => B that doesn't/isn't A N1
Adjectival, Descriptions