KoreanSum

Verbs · Regular

사다 conjugation

to buy · sada · sounds like [사다]

Short answer: “To buy” in Korean is 사다 (sada). Polite present: 사요 (sayo); past: 샀어요 (sasseoyo); future: 살 거예요. It is regular.

Opposite: 팔다 — to sell

사다 in sentences

All forms of 사다

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.
FormKoreanSounds likeRomanized
polite-아/어요사요[사요]sayo
formal-(스)ㅂ니다삽니다[삼니다]samnida
casual-아/어사[사]sa
plain (written)-(느)ㄴ다산다[산다]sanda
formal question-(스)ㅂ니까?삽니까?[삼니까]samnikka?
is …ing (polite)-고 있어요사고 있어요[사고 이써요]sago isseoyo
Past
FormKoreanSounds likeRomanized
polite-았/었어요샀어요[사써요]sasseoyo
formal-았/었습니다샀습니다[삳씀니다]satseumnida
casual-았/었어샀어[사써]sasseo
plain (written)-았/었다샀다[삳따]satda
Future
FormKoreanSounds likeRomanized
polite — will-(으)ㄹ 거예요살 거예요[살 꺼예요]sal geoyeyo
formal-(으)ㄹ 겁니다살 겁니다[살 껌니다]sal geomnida
casual-(으)ㄹ 거야살 거야[살 꺼야]sal geoya
formal — I will (intention)-겠습니다사겠습니다[사겓씀니다]sagetseumnida
Negative
FormKoreanSounds likeRomanized
not (short)안 …안 사요[안 사요]an sayo
did not안 …았/었어요안 샀어요[안 사써요]an sasseoyo
not (long)-지 않아요사지 않아요[사지 아나요]saji anayo
cannot못 …못 사요[몯 싸요]mot sayo
Honorific
Add -(으)시- when the subject is someone you respect (a teacher, a customer, an older person) — not yourself.
FormKoreanSounds likeRomanized
honorific — present-(으)세요사세요[사세요]saseyo
honorific — past-(으)셨어요사셨어요[사셔써요]sasyeosseoyo
honorific — formal-(으)십니다사십니다[사심니다]sasimnida
Requests
FormKoreanSounds likeRomanized
please …-(으)세요사세요[사세요]saseyo
please … (for me)-아/어 주세요사 주세요[사 주세요]sa juseyo
please don’t …-지 마세요사지 마세요[사지 마세요]saji maseyo
let’s … (formal)-(으)ㅂ시다삽시다[삽씨다]sapsida
let’s … (casual)-자사자[사자]saja
do … ! (casual command)-아/어라사라[사라]sara
Connecting
FormKoreanSounds likeRomanized
… and-고사고[사고]sago
… so / and then-아/어서사서[사서]saseo
if …-(으)면사면[사면]samyeon
… but-지만사지만[사지만]sajiman
because …-(으)니까사니까[사니까]sanikka
… and / but (background)-는데사는데[사는데]saneunde
even if …-아/어도사도[사도]sado
while …-(으)면서사면서[사면서]samyeonseo
in order to …-(으)려고사려고[사려고]saryeogo
(go) to …-(으)러사러[사러]sareo
before …-기 전에사기 전에[사기 저네]sagi jeone
after …-(으)ㄴ 후에산 후에[산 후에]san hue
Describing a noun
These go before a noun: “the food (that) I ate”, “a cold day”.
FormKoreanSounds likeRomanized
(that) … now-는사는[사는]saneun
(that) …ed-(으)ㄴ산[산]san
(that) will …-(으)ㄹ살[살]sal
Useful patterns
FormKoreanSounds likeRomanized
I want to …-고 싶어요사고 싶어요[사고 시퍼요]sago sipeoyo
can …-(으)ㄹ 수 있어요살 수 있어요[살 쑤 이써요]sal su isseoyo
cannot …-(으)ㄹ 수 없어요살 수 없어요[살 쑤 업써요]sal su eopseoyo
have to …-아/어야 해요사야 해요[사야 해요]saya haeyo
may … / it’s OK to …-아/어도 돼요사도 돼요[사도 돼요]sado dwaeyo
must not …-(으)면 안 돼요사면 안 돼요[사면 안 돼요]samyeon an dwaeyo
…ing (noun)-기사기[사기]sagi

How 사다 changes

사 ends in a vowel, so 사 + 아/어 becomes 사 → 사요, 샀어요. Endings written -(으) attach directly → 사면, 살. 사다 is regular.

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

Questions

How do you say “buy” in Korean?

“To buy” is 사다 (sada), pronounced [사다]. In a sentence: 마트에서 과일을 샀어요. — I bought fruit at the supermarket.

What is the past tense of 사다?

샀어요 (sasseoyo) is the polite past tense of 사다 (“to buy”). Formal: 샀습니다; casual: 샀어.

How do you say 사다 politely?

Everyday polite: 사요 (sayo). Formal: 삽니다. Casual, with close friends: 사.

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

사고 싶어요 (sago sipeoyo), pronounced [사고 시퍼요].

Is 사다 irregular?

No. 사 ends in a vowel, so 사 + 아/어 becomes 사 → 사요, 샀어요. Endings written -(으) attach directly → 사면, 살. 사다 is regular.

More regular words like 사다

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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