尊敬語 => Honorifics N4
丁寧語 => polite form N4
謙譲語 => Humble form N4
…のも無理 (は) ない => It's natural for... N3
Evaluate
のも無理もない => (to be) natural,(to be) understandable N3
Evaluate
は..語で何ですか => What does it mean... N5
Explain
[尊敬語「そんけいご」] => Respectful form of A N4
Honorifics
[謙譲語「けんじょうご」] => Humble form of A, humble form of する verbs N4
Honorifics