Adjectives · ㅂ irregular

즐겁다 conjugation

to be enjoyable; fun · jeulgeopda · sounds like [즐겁따]

Short answer: “Enjoyable” in Korean is 즐겁다 (jeulgeopda), which also means fun. Polite present: 즐거워요 (jeulgeowoyo); past: 즐거웠어요 (jeulgeowosseoyo); future: 즐거울 거예요. It is a ㅂ irregular adjective.

Present즐거워요[즐거워요] · jeulgeowoyo
Past즐거웠어요[즐거워써요] · jeulgeowosseoyo
Future즐거울 거예요[즐거울 꺼예요] · jeulgeoul geoyeyo
Negative안 즐거워요[안 즐거워요] · an jeulgeowoyo

즐겁다 in sentences

여행이 정말 즐거웠어요.The trip was really fun.
즐거운 주말 보내세요!Have a nice weekend!

All forms of 즐겁다

Present
Polite (해요) is the everyday safe choice; formal (합니다) is for news, announcements and work; casual (반말) is for close friends and younger people.
Form	Korean	Sounds like	Romanized
polite-아/어요	즐거워요	[즐거워요]	jeulgeowoyo
formal-(스)ㅂ니다	즐겁습니다	[즐겁씀니다]	jeulgeopseumnida
casual-아/어	즐거워	[즐거워]	jeulgeowo
plain (written)-다	즐겁다	[즐겁따]	jeulgeopda
formal question-(스)ㅂ니까?	즐겁습니까?	[즐겁씀니까]	jeulgeopseumnikka?

Past
Form	Korean	Sounds like	Romanized
polite-았/었어요	즐거웠어요	[즐거워써요]	jeulgeowosseoyo
formal-았/었습니다	즐거웠습니다	[즐거웓씀니다]	jeulgeowotseumnida
casual-았/었어	즐거웠어	[즐거워써]	jeulgeowosseo
plain (written)-았/었다	즐거웠다	[즐거웓따]	jeulgeowotda

Future
Form	Korean	Sounds like	Romanized
polite — will probably be-(으)ㄹ 거예요	즐거울 거예요	[즐거울 꺼예요]	jeulgeoul geoyeyo
formal-(으)ㄹ 겁니다	즐거울 겁니다	[즐거울 껌니다]	jeulgeoul geomnida
casual-(으)ㄹ 거야	즐거울 거야	[즐거울 꺼야]	jeulgeoul geoya

Negative
Form	Korean	Sounds like	Romanized
not (short)안 …	안 즐거워요	[안 즐거워요]	an jeulgeowoyo
did not안 …았/었어요	안 즐거웠어요	[안 즐거워써요]	an jeulgeowosseoyo
not (long)-지 않아요	즐겁지 않아요	[즐겁찌 아나요]	jeulgeopji anayo

Honorific
Add -(으)시- when the subject is someone you respect (a teacher, a customer, an older person) — not yourself.
Form	Korean	Sounds like	Romanized
honorific — present-(으)세요	즐거우세요	[즐거우세요]	jeulgeouseyo
honorific — past-(으)셨어요	즐거우셨어요	[즐거우셔써요]	jeulgeousyeosseoyo
honorific — formal-(으)십니다	즐거우십니다	[즐거우심니다]	jeulgeousimnida

Connecting
Form	Korean	Sounds like	Romanized
… and-고	즐겁고	[즐겁꼬]	jeulgeopgo
… so / and then-아/어서	즐거워서	[즐거워서]	jeulgeowoseo
if …-(으)면	즐거우면	[즐거우면]	jeulgeoumyeon
… but-지만	즐겁지만	[즐겁찌만]	jeulgeopjiman
because …-(으)니까	즐거우니까	[즐거우니까]	jeulgeounikka
… and / but (background)-(으)ㄴ데	즐거운데	[즐거운데]	jeulgeounde
even if …-아/어도	즐거워도	[즐거워도]	jeulgeowodo
while …-(으)면서	즐거우면서	[즐거우면서]	jeulgeoumyeonseo

Describing a noun
These go before a noun: “the food (that) I ate”, “a cold day”.
Form	Korean	Sounds like	Romanized
(that is) …-(으)ㄴ	즐거운	[즐거운]	jeulgeoun
(that) will …-(으)ㄹ	즐거울	[즐거울]	jeulgeoul

Useful patterns
Form	Korean	Sounds like	Romanized
can be …-(으)ㄹ 수 있어요	즐거울 수 있어요	[즐거울 쑤 이써요]	jeulgeoul su isseoyo
cannot be …-(으)ㄹ 수 없어요	즐거울 수 없어요	[즐거울 쑤 업써요]	jeulgeoul su eopseoyo
have to be …-아/어야 해요	즐거워야 해요	[즐거워야 해요]	jeulgeowoya haeyo
it’s OK if it’s …-아/어도 돼요	즐거워도 돼요	[즐거워도 돼요]	jeulgeowodo dwaeyo
…ly (adverb)-게	즐겁게	[즐겁께]	jeulgeopge
becomes …-아/어지다	즐거워져요	[즐거워저요]	jeulgeowojeoyo
…ing (noun)-기	즐겁기	[즐겁끼]	jeulgeopgi

How 즐겁다 changes

ㅂ irregular: before a vowel, ㅂ turns into 우 — so 즐겁 + 어 → 즐거워요, and -(으) endings use 우: 즐거우면, 즐거울. Before a consonant the ㅂ stays: 즐겁습니다, 즐겁고. Not every ㅂ word does this — 입다 → 입어요 and 잡다 → 잡아요 are regular.

How every verb type works → · Why it sounds like that →

Questions

How do you say “enjoyable” in Korean?

“Enjoyable” is 즐겁다 (jeulgeopda), pronounced [즐겁따]. In a sentence: 여행이 정말 즐거웠어요. — The trip was really fun.

What is the past tense of 즐겁다?

즐거웠어요 (jeulgeowosseoyo) is the polite past tense of 즐겁다 (“to be enjoyable”). Formal: 즐거웠습니다; casual: 즐거웠어.

How do you say 즐겁다 politely?

Everyday polite: 즐거워요 (jeulgeowoyo). Formal: 즐겁습니다. Casual, with close friends: 즐거워.

How do you say “not enjoyable” in Korean?

안 즐거워요 or 즐겁지 않아요. Both mean the same; the first is more common in speech.

Is 즐겁다 irregular?

Yes — ㅂ irregular: before a vowel, ㅂ turns into 우 — so 즐겁 + 어 → 즐거워요, and -(으) endings use 우: 즐거우면, 즐거울. Before a consonant the ㅂ stays: 즐겁습니다, 즐겁고. Not every ㅂ word does this — 입다 → 입어요 and 잡다 → 잡아요 are regular.

More ㅂ irregular words like 즐겁다

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Forms follow 한글 맞춤법 (Korean spelling rules); pronunciation follows 표준 발음법 and romanization follows 국어의 로마자 표기법 (Revised Romanization). Last updated October 16, 2026. How we check