[際「さい」]して/に([際「さい」]し)/に[際「さい」]しての => At the time of A (which starts now).. N2
Time, Situation
なさい => Do A (command) N4
Can, Should, Must
さえ/にさえ/でさえ => Even N3
Not only, Not even
~てください => Please do ~ N5
Asking and Telling
~ないでください => Please don't do~ N5
Asking and Telling
をください => Please give me N N5
Asking and Telling
させて[頂「いただ」]きます/させてもらいます => Allow me to A N1
Miscellaneous
さて => So N2
Miscellaneous
て下さいませんか => Please do A (polite) N5
Asking and Telling
たが[最後「さいご」] => Once A occurs, B happens N1
Information, Report
[最中「さいちゅう」] => In the middle of A N3
Time, Situation
を[境「さかい」]に => A is set as a border/limit N1
Degree/ Level/Amount