せいで/せいか => Because of A, B N3
Reason, Result, Response
て下さいませんか => Please do A (polite) N5
Asking and Telling
をくださいませんか => Please give me A (polite) N5
Asking and Telling
~ませんか => Let's…, Would you like to... N5
Verb suffixes
ずにはおかない/ないではおかない => Will definitely A, N1
Will, Decision, Doing
かねない => Afraid that N2
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
にほかならない => Only A N2
Reason, Result, Response
てかなわない => A is a problem N2
Adjectival, Descriptions
うではないか/うじゃないか => Let's go A; Why don't we A? N2
Miscellaneous
と[言「い」]わせれば => On the view of N1
Based/focused/depending on
かいもなく => Even though A, N2
Contrast,Surprise