Verbs · Regular

믿다 conjugation

to believe; to trust · mitda · sounds like [믿따]

Short answer: “To believe” in Korean is 믿다 (mitda), which also means to trust. Polite present: 믿어요 (mideoyo); past: 믿었어요 (mideosseoyo); future: 믿을 거예요. It is regular.

Present믿어요[미더요] · mideoyo
Past믿었어요[미더써요] · mideosseoyo
Future믿을 거예요[미들 꺼예요] · mideul geoyeyo
Negative안 믿어요[안 미더요] · an mideoyo

믿다 in sentences

저를 믿으세요.Trust me.
그 말을 믿을 수 없어요.I can’t believe it.

All forms of 믿다

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	믿어요	[미더요]	mideoyo
formal-(스)ㅂ니다	믿습니다	[믿씀니다]	mitseumnida
casual-아/어	믿어	[미더]	mideo
plain (written)-(느)ㄴ다	믿는다	[민는다]	minneunda
formal question-(스)ㅂ니까?	믿습니까?	[믿씀니까]	mitseumnikka?
is …ing (polite)-고 있어요	믿고 있어요	[믿꼬 이써요]	mitgo isseoyo

Past
Form	Korean	Sounds like	Romanized
polite-았/었어요	믿었어요	[미더써요]	mideosseoyo
formal-았/었습니다	믿었습니다	[미덛씀니다]	mideotseumnida
casual-았/었어	믿었어	[미더써]	mideosseo
plain (written)-았/었다	믿었다	[미덛따]	mideotda

Future
Form	Korean	Sounds like	Romanized
polite — will-(으)ㄹ 거예요	믿을 거예요	[미들 꺼예요]	mideul geoyeyo
formal-(으)ㄹ 겁니다	믿을 겁니다	[미들 껌니다]	mideul geomnida
casual-(으)ㄹ 거야	믿을 거야	[미들 꺼야]	mideul geoya
formal — I will (intention)-겠습니다	믿겠습니다	[믿껟씀니다]	mitgetseumnida

Negative
Form	Korean	Sounds like	Romanized
not (short)안 …	안 믿어요	[안 미더요]	an mideoyo
did not안 …았/었어요	안 믿었어요	[안 미더써요]	an mideosseoyo
not (long)-지 않아요	믿지 않아요	[믿찌 아나요]	mitji anayo
cannot못 …	못 믿어요	[몬 미더요]	mot mideoyo

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	믿으세요	[미드세요]	mideuseyo
honorific — past-(으)셨어요	믿으셨어요	[미드셔써요]	mideusyeosseoyo
honorific — formal-(으)십니다	믿으십니다	[미드심니다]	mideusimnida

Requests
Form	Korean	Sounds like	Romanized
please …-(으)세요	믿으세요	[미드세요]	mideuseyo
please … (for me)-아/어 주세요	믿어 주세요	[미더 주세요]	mideo juseyo
please don’t …-지 마세요	믿지 마세요	[믿찌 마세요]	mitji maseyo
let’s … (formal)-(으)ㅂ시다	믿읍시다	[미듭씨다]	mideupsida
let’s … (casual)-자	믿자	[믿짜]	mitja
do … ! (casual command)-아/어라	믿어라	[미더라]	mideora

Connecting
Form	Korean	Sounds like	Romanized
… and-고	믿고	[믿꼬]	mitgo
… so / and then-아/어서	믿어서	[미더서]	mideoseo
if …-(으)면	믿으면	[미드면]	mideumyeon
… but-지만	믿지만	[믿찌만]	mitjiman
because …-(으)니까	믿으니까	[미드니까]	mideunikka
… and / but (background)-는데	믿는데	[민는데]	minneunde
even if …-아/어도	믿어도	[미더도]	mideodo
while …-(으)면서	믿으면서	[미드면서]	mideumyeonseo
in order to …-(으)려고	믿으려고	[미드려고]	mideuryeogo
(go) to …-(으)러	믿으러	[미드러]	mideureo
before …-기 전에	믿기 전에	[믿끼 저네]	mitgi jeone
after …-(으)ㄴ 후에	믿은 후에	[미든 후에]	mideun hue

Describing a noun
These go before a noun: “the food (that) I ate”, “a cold day”.
Form	Korean	Sounds like	Romanized
(that) … now-는	믿는	[민는]	minneun
(that) …ed-(으)ㄴ	믿은	[미든]	mideun
(that) will …-(으)ㄹ	믿을	[미들]	mideul

Useful patterns
Form	Korean	Sounds like	Romanized
I want to …-고 싶어요	믿고 싶어요	[믿꼬 시퍼요]	mitgo sipeoyo
can …-(으)ㄹ 수 있어요	믿을 수 있어요	[미들 쑤 이써요]	mideul su isseoyo
cannot …-(으)ㄹ 수 없어요	믿을 수 없어요	[미들 쑤 업써요]	mideul su eopseoyo
have to …-아/어야 해요	믿어야 해요	[미더야 해요]	mideoya haeyo
may … / it’s OK to …-아/어도 돼요	믿어도 돼요	[미더도 돼요]	mideodo dwaeyo
must not …-(으)면 안 돼요	믿으면 안 돼요	[미드면 안 돼요]	mideumyeon an dwaeyo
…ing (noun)-기	믿기	[믿끼]	mitgi

How 믿다 changes

믿 ends in a consonant, so 아/어 endings are added as they are → 믿어요, and endings written -(으) add 으 → 믿으면, 믿을. 믿다 is regular.

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

Questions

How do you say “believe” in Korean?

“To believe” is 믿다 (mitda), pronounced [믿따]. In a sentence: 저를 믿으세요. — Trust me.

What is the past tense of 믿다?

믿었어요 (mideosseoyo) is the polite past tense of 믿다 (“to believe”). Formal: 믿었습니다; casual: 믿었어.

How do you say 믿다 politely?

Everyday polite: 믿어요 (mideoyo). Formal: 믿습니다. Casual, with close friends: 믿어.

How do you say “I want to believe” in Korean?

믿고 싶어요 (mitgo sipeoyo), pronounced [믿꼬 시퍼요].

Is 믿다 irregular?

No. 믿 ends in a consonant, so 아/어 endings are added as they are → 믿어요, and endings written -(으) add 으 → 믿으면, 믿을. 믿다 is regular.

More regular words like 믿다

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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