무효하다

Korean

Etymology

무효(無效) (muhyo) +‎ 하다 (-hada, “to do”, light verb deriving adjectives).

Pronunciation

• (SK Standard/Seoul) IPA^(key): [muʝoɦa̠da̠]
• Phonetic hangul: [무효하다]

Romanizations
Revised Romanization?	muhyohada
Revised Romanization (translit.)?	muhyohada
McCune–Reischauer?	muhyohada
Yale Romanization?	muhyohata

Adjective

무효하다 • (muhyohada) (infinitive 무효해 or 무효하여, sequential 무효하니)

1. (to be) ineffective, invalid

   Antonym: 유효하다 (yuhyohada)

Conjugation

Sentence-final forms
		Formal non-polite (해라체)	Informal non-polite (해체)	Informal polite (해요체)	Formal polite (하십시오체)
Indicative	Non-past	무효하다 muhyohada	무효해 muhyohae	무효해요 muhyohaeyo	무효합니다 muhyohamnida
	Past	무효했다 muhyohaetda	무효했어 muhyohaesseo	무효했어요 muhyohaesseoyo	무효했습니다 muhyohaetseumnida
Interrogative	Non-past	무효하냐 muhyohanya	무효해 muhyohae	무효해요 muhyohaeyo	무효합니까 muhyohamnikka
	Past	무효했냐 muhyohaennya	무효했어 muhyohaesseo	무효했어요 muhyohaesseoyo	무효했습니까 muhyohaetseumnikka
Assertive		무효하겠다 muhyohagetda	무효하겠어 muhyohagesseo	무효하겠어요 muhyohagesseoyo	무효하겠습니다 muhyohagetseumnida
Connective forms
Cause/Reason		무효해 muhyohae	무효해서, 무효하여서 muhyohaeseo, muhyohayeoseo	무효하니 muhyohani	무효하니까 muhyohanikka
Contrast		무효하지만 muhyohajiman	무효한데 muhyohande	무효하더니 muhyohadeoni
Conjunction		무효하고 muhyohago
Condition		무효하면 muhyohamyeon	무효해야, 무효하여야 muhyohaeya, muhyohayeoya
Noun and determiner forms
Verbal nouns		무효함 muhyoham	무효하기 muhyohagi
Past-tense verbal nouns		무효했음, 무효하였음 muhyohaesseum, muhyohayeosseum	무효했기, 무효하였기 muhyohaetgi, muhyohayeotgi
Determiners	Present		무효한 muhyohan
	Future		무효할 muhyohal

Sentence-final forms with honorific
		Plain (해라체)	Informal (해체)	Polite (해요체)	Formal (하십시오체)
Indicative	Non-past	무효하시다 muhyohasida	무효하셔 muhyohasyeo	무효하세요, 무효하셔요 muhyohaseyo, muhyohasyeoyo	무효하십니다 muhyohasimnida
	Past	무효하셨다 muhyohasyeotda	무효하셨어 muhyohasyeosseo	무효하셨어요 muhyohasyeosseoyo	무효하셨습니다 muhyohasyeotseumnida
Interrogative	Non-past	무효하시냐 muhyohasinya	무효하셔 muhyohasyeo	무효하세요, 무효하셔요 muhyohaseyo, muhyohasyeoyo	무효하십니까 muhyohasimnikka
	Past	무효하셨냐 muhyohasyeonnya	무효하셨어 muhyohasyeosseo	무효하셨어요 muhyohasyeosseoyo	무효하셨습니까 muhyohasyeotseumnikka
Assertive		무효하시겠다 muhyohasigetda	무효하시겠어 muhyohasigesseo	무효하시겠어요 muhyohasigesseoyo	무효하시겠습니다 muhyohasigetseumnida
Connective forms with honorific
Cause/Reason		무효하셔 muhyohasyeo	무효하셔서 muhyohasyeoseo	무효하시니 muhyohasini	무효하시니까 muhyohasinikka
Contrast		무효하시지만 muhyohasijiman	무효하신데 muhyohasinde	무효하시더니 muhyohasideoni
Conjunction		무효하시고 muhyohasigo
Condition		무효하시면 muhyohasimyeon	무효하셔야 muhyohasyeoya
Noun and determiner forms with honorific
Verbal nouns		무효하심 muhyohasim	무효하시기 muhyohasigi
Past-tense verbal nouns		무효하셨음 muhyohasyeosseum	무효하셨기 muhyohasyeotgi
Determiners	Present		무효하신 muhyohasin
	Future		무효하실 muhyohasil

    Selected forms of the adjective 무효하다 (muhyohada): vowel-stem, 하(ha)-irregular