[合「あ」]う => To do A together/mutually N4
Secondary Verb
と[言「い」]わせれば => On the view of N1
Based/focused/depending on
せいで/せいか => Because of A, B N3
Reason, Result, Response
くせして => Even though A N2
Contrast,Surprise
~ます/~ません => Polite, present form N5
Verb suffixes
わ => Very, so, already N5
Particles
~ませんか => Let's…, Would you like to... N5
Verb suffixes
てみせる => To show (the action) A N1
Will, Decision, Doing
くせに => Even though A, unfortunate result B N3
Contrast
させて[頂「いただ」]きます/させてもらいます => Allow me to A N1
Miscellaneous
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
にしろ/にせよ/にもせよ => Regardless of if it's A or B, Even in the case of A N2
Based, Focused, Depending on