んです => Because, by… N4
Situations and Experiences
...たいんですが => want N4
How to say the beginning
どんな...ですか => How N5
Confirm
んですが => opening the story N4
~く/ ~にする      => to make something ~ N4
Add meaning
くないです => Adjective negation N5
Emphasize the negative meaning
んです => to explain something; show emphasis N4
ちゃんとする => Serious, tidy, complete N3
Result status
てすみません => I'm sorry for... N4
くする/にする => To make, to change into N5
Change, cause and effect
なんとなく => for some reason, somehow N3
Vague
~ます/~ません => Polite, present form N5
Verb suffixes