Verbseoul.
하다 verb

수영하다 conjugation (suyeonghada, to swim (move through water))

To say to swim (move through water) politely in the present tense, use 수영해요 (soo-yuhng-hae-yoh) · suyeonghaeyo. Below is the full conjugation of 수영하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
수영해
soo-yuhng-hae
suyeonghae
수영해요
soo-yuhng-hae-yoh
suyeonghaeyo
수영합니다
soo-yuhng-hahm-nee-dah
suyeonghamnida
Past
수영했어
soo-yuhng-hae-ssuh
suyeonghaesseo
수영했어요
soo-yuhng-hae-ssuh-yoh
suyeonghaesseoyo
수영했습니다
soo-yuhng-hae-sseum-nee-dah
suyeonghaesseumnida
Future
수영할 거야
soo-yuhng-hahl guh-yah
suyeonghal geoya
수영할 거예요
soo-yuhng-hahl guh-yae-yoh
suyeonghal geoyeyo
수영할 겁니다
soo-yuhng-hahl guhm-nee-dah
suyeonghal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
수영하세요
soo-yuhng-hah-sae-yoh
suyeonghaseyo
Suggestion / Let's Polite (요)
수영해요
soo-yuhng-hae-yoh
suyeonghaeyo
Question Polite (요)
수영해요?
soo-yuhng-hae-yoh-?
suyeonghaeyo?
Connective "and" — (고)
수영하고
soo-yuhng-hah-goh
suyeonghago
Conditional "if" — (면)
수영하면
soo-yuhng-hah-myuhn
suyeonghamyeon
Progressive (고 있어요)
수영하고 있어요
soo-yuhng-hah-goh ee-ssuh-yoh
suyeonghago isseoyo
Want to (고 싶어요)
수영하고 싶어요
soo-yuhng-hah-goh shee-puh-yoh
suyeonghago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
수영할 수 있어요
soo-yuhng-hahl soo ee-ssuh-yoh
suyeonghal su isseoyo
Because / So (아/어서)
수영해서
soo-yuhng-hae-suh
suyeonghaeseo
Noun form — (기)
수영하기
soo-yuhng-hah-gee
suyeonghagi
Noun form — (음)
수영함
soo-yuhng-hahm
suyeongham