View source for 아/어 + 야 하다

'''Verb + 아/어/여 + 야 하다''' : This pattern is used to indicate obligation. This pattern is slightly stronger than [[V + 아/어 + 야 되다]].

==Conjugation Rule==
If the vowel of the last syllable is either ㅗ or ㅏ, add 아. If the vowel isn't either ㅗ or ㅏ, and the verb is not a [[하다]] verb, add 어. If the verb is a [[하다]] verb, add 여.

Once that is done, add 야 하다. From there you can conjugate into different tenses and formality levels. For example, changing the last 하다 to 해요 for the polite informal form (e.g. 가야 하다 → 가야 해요).

==Conjugation Examples==
*가다 → 가야 하다 (가아 contracts to 가)
*오다 → 와야 하다
*먹다 → 먹어야 하다
*가르치다 → 가르쳐야 하다 (치어 contracts to 쳐)
*행복하다 → 행복해야 하다 (하여 contracts to 해)

==Sentence Examples==
{{Example table
|Korex1 =저는 한국어 공부를 열심히 해야 해요.
|Engex1 =I have to study Korean hard. 
|Comment1 =Polite informal form 
|Korex2 =너는 병원에 가야 해.
|Engex2 =You should go to the hospital.
|Comment2 =Low form 
|Korex3 =외국에 가려면 여권이 있어야 해요. 
|Engex3 =If you want to go abroad, you have to have a passport.
|Comment3 =Polite informal form 
|Korex4 =회사에 가야 해요.
|Engex4 =I have to go to work. 
|Comment4 =Polite informal form 
|Korex5 =서류를 제출해야 해.
|Engex5 =I have to hand in documents.
|Comment5 =Low form 
|Korex6 =사람은 마음이 착해야 해요.
|Engex6 =People should have good hearts.
|Comment6 =Polite informal form 
|Korex7 =운전면허를 따야 해.
|Engex7 =I have to get a driver's license. 
|Comment7 =Low form 
|Korex8 =나는 영어를 배워야 해요.
|Engex8 =I must learn English.
|Comment8 =Polite informal form 
|Korex9 =집에 일찍 들어가야 해요.
|Engex9 =I have to go home early.
|Comment9 =Polite informal form 
|Korex10 = 내일은 일찍 일어나야 해.
|Engex10 =I have to get up early tomorrow. 
|Comment10 = Low form 
}}

==Exceptions==
*Example

==Pronunciation==
*Special pronunciation rule?

==See Also==
*[[V + 아/어 + 야 되다]]
*[[V + 아/어 + 야 지]]

{{Languages|{{PAGENAME}}}}

[[Category:Grammar|ㅇ]]
[[Category:SNU level 2 grammar|ㅇ]]
[[Category:Sogang level 1 grammar|ㅇ]]
[[Category:아/어/여 form|ㅇ]]