Verbseoul.
하다 verb

경쟁하다 conjugation (gyeongjaenghada, to compete)

To say to compete politely in the present tense, use 경쟁해요 (gyuhng-chaeng-hae-yoh) · gyeongjaenghaeyo. Below is the full conjugation of 경쟁하다 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
경쟁해
gyuhng-chaeng-hae
gyeongjaenghae
경쟁해요
gyuhng-chaeng-hae-yoh
gyeongjaenghaeyo
경쟁합니다
gyuhng-chaeng-hahm-nee-dah
gyeongjaenghamnida
Past
경쟁했어
gyuhng-chaeng-hae-ssuh
gyeongjaenghaesseo
경쟁했어요
gyuhng-chaeng-hae-ssuh-yoh
gyeongjaenghaesseoyo
경쟁했습니다
gyuhng-chaeng-hae-sseum-nee-dah
gyeongjaenghaesseumnida
Future
경쟁할 거야
gyuhng-chaeng-hahl guh-yah
gyeongjaenghal geoya
경쟁할 거예요
gyuhng-chaeng-hahl guh-yae-yoh
gyeongjaenghal geoyeyo
경쟁할 겁니다
gyuhng-chaeng-hahl guhm-nee-dah
gyeongjaenghal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
경쟁하세요
gyuhng-chaeng-hah-sae-yoh
gyeongjaenghaseyo
Suggestion / Let's Polite (요)
경쟁해요
gyuhng-chaeng-hae-yoh
gyeongjaenghaeyo
Question Polite (요)
경쟁해요?
gyuhng-chaeng-hae-yoh-?
gyeongjaenghaeyo?
Connective "and" — (고)
경쟁하고
gyuhng-chaeng-hah-goh
gyeongjaenghago
Conditional "if" — (면)
경쟁하면
gyuhng-chaeng-hah-myuhn
gyeongjaenghamyeon
Progressive (고 있어요)
경쟁하고 있어요
gyuhng-chaeng-hah-goh ee-ssuh-yoh
gyeongjaenghago isseoyo
Want to (고 싶어요)
경쟁하고 싶어요
gyuhng-chaeng-hah-goh shee-puh-yoh
gyeongjaenghago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
경쟁할 수 있어요
gyuhng-chaeng-hahl soo ee-ssuh-yoh
gyeongjaenghal su isseoyo
Because / So (아/어서)
경쟁해서
gyuhng-chaeng-hae-suh
gyeongjaenghaeseo
Noun form — (기)
경쟁하기
gyuhng-chaeng-hah-gee
gyeongjaenghagi
Noun form — (음)
경쟁함
gyuhng-chaeng-hahm
gyeongjaengham