[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
ね => Requests confirmation from the listener N5
Particles
かねない => Afraid that N2
Potential, Possibility
ねばならない => Must A N2
Needs, Requirements
せいで/せいか => Because of A, B N3
Reason, Result, Response
[兼「か」]ねて => Also for the purpose of A N1
Miscellaneous
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