아니다

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Meaning and Usage

The Korean word '아니다' is a fundamental negation verb meaning 'to not be'. It is used to deny or negate the identity or state of a noun or pronoun. It is often used in simple declarative sentences to state that something or someone is not what is claimed.

Common Patterns

  • Noun + 아니다: The most basic pattern to say 'is not [noun]'. For example, '학생이 아니다' means 'is not a student'.
  • Verb/Adjective stem + -지 않다 is used for negating actions or states, but '아니다' specifically negates nouns or nominal predicates.

Register and Politeness

'아니다' is the dictionary form and is neutral in formality. In polite speech, it often appears as '아니에요' or '아닙니다'.

Common Collocations

  • ~이 아니다: Used after a noun ending in a consonant.
  • ~가 아니다: Used after a noun ending in a vowel.

Learner Tips

A common mistake is confusing '아니다' with verb negation forms like '안 하다' or '지 않다'. Remember, '아니다' negates the identity or state, not the action. For example, '학생이 아니다' means 'is not a student', while '공부하지 않다' means 'does not study'.

Understanding this distinction helps avoid errors in expressing negation correctly.

Example Sentences

이것은 사과가 아니다.

Igeoseun sagwaga anida.

This is not an apple.

그 사람은 선생님이 아니다.

Geu sarameun seonsaengnimi anida.

That person is not a teacher.

내가 틀렸던 것이 아니다.

Naega teullyeotdeon geosi anida.

It is not that I was wrong.