て下さいませんか => Please do A (polite) N5
Asking and Telling
~ませんか => Let's…, Would you like to... N5
Verb suffixes
~ました/~ませんでした => Polite, past form of verb N5
Verb suffixes
をくださいませんか => Please give me A (polite) N5
Asking and Telling
せいで/せいか => Because of A, B N3
Reason, Result, Response
~ます/~ません => Polite, present form N5
Verb suffixes
[関「かん」]して => About A, With relation to A N3
Considering, Concerning
くせして => Even though A N2
Contrast,Surprise
いかんでは,いかんによっては => Considering A, depending on A N1
Based/focused/depending on
に[反「はん」]して/に[反「はん」]し/に[反「はん」]する/に[反「はん」]した => In contrast to A N2
Contrast,Surprise
いかんにかかわらず,いかんによらず => Regardless of A (A is a reason, response, result) N1
Based/focused/depending on
[禁止「きんし」] => Don't do N4
Can, Should, Must