a. N. + 인가요? => "is it . . . ?" b. D.V. + ㄴ/은가요? => "is it . . . (adjective)?" c. A.V. + 나요? => "is it . . . (action verb)?"

	a.	N. + 인가요?
		=> "is it . . . ?"
	b.	D.V. + ㄴ/은가요?
		=> "is it . . . (adjective)?"
	c.	A.V. + 나요?
		=> "is it . . . (action verb)?"

These question endings indicate that the speaker wants a confirmatory (yes or no) answer. Note that 있다 and 없다 end in -나요, as in -있나요? or -없나요?

(a)

• 오늘이 노는 날인가요?
  => Is today a holiday?
  
• 이 분이 선생님인가요?
  => Is he a teacher?

(b) 

• 날씨가 추운가요?
  => Is the weather cold?
  
• 집이 넓은가요?
  => Is the house roomy?

(c) 

• 한국어를 배우나요?
  => Are you learning Korean?
  
• 요즘 무슨 책을 읽나요?
  => What books are you reading these days?
  
• 동생이 있나요?
  => Does he have a younger sibling?