V/A~ ㄴ/은 는지 알다/모르다 [ Korean Grammar ]

Today we'll be looking at the usage of " V/A~ ㄴ/은 는지 알다/모르다 " Korean grammar point with some example sentences.

Conjugation rule :

The basic conjugation rules are :

Present tense : Adjectives

• When the adj. stem ends with a vowel, add ~ㄴ지 
• When the adj. stem ends with a consonant, add ~은지

Present tense : Verbs

Add ~는지 irrespective of whether the verb stem ends with a consonant or vowel. 

Past tense : Adjectives/Verbs

• If the verb stem ends with 오 or 아, add ~았는지 after the stem.
• If the verb stem ends with anything other than 오 or 아, add ~었는지 after the stem.

Future tense : Verbs

• If the verb stem ends with a vowel, add ~ㄹ 지 at the end. 
• If the verb stem ends with a consonant, add ~을 지 at the end.

Let's see some example sentences :

• 학교에 어떻게 가는지 알아요?
  Do you know how to go to School?
• 저 여자가 누구인지 아세요?
  Do you know who is that girl?
• 미나가 어디에 있는지 아세요?
  do you know where is mina
• 선생님은 언제 도착하시는지 아세요?
  do you know when the teacher is going to arrive?
• 당신은 은행이 어디에 있는지 아세요?
  do you know where is the bank?
• 고양이가 잤는지 알아요?
  Do you know whether the kitten slept or not?

In the sentences like above, it's also common to use ㄴ/은/는 지 안 ㄴ/은/는 지 .... So the above sentence can also be written as:

• 고양이가 잤는지 인 잤는지 알아요?
  Do you know whether the kitten slept or not?
• 김치찌개를 어떻게 만드는지 모르겠어요.
  I don’t know how to make kimchi stew.
• 비가 언제 그치는지 모르겠어요.
  I don’t know when the rain is stopping.