Verbseoul.
하다 verb

노력하다 conjugation (noryeokhada, to strive, to exert oneself)

To say to strive, to exert oneself politely in the present tense, use 노력해요 (noh-ryuh-kae-yoh) · noryeokaeyo. Below is the full conjugation of 노력하다 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
노력해
noh-ryuh-kae
noryeokae
노력해요
noh-ryuh-kae-yoh
noryeokaeyo
노력합니다
noh-ryuh-kahm-nee-dah
noryeokamnida
Past
노력했어
noh-ryuh-kae-ssuh
noryeokaesseo
노력했어요
noh-ryuh-kae-ssuh-yoh
noryeokaesseoyo
노력했습니다
noh-ryuh-kae-sseum-nee-dah
noryeokaesseumnida
Future
노력할 거야
noh-ryuh-kahl guh-yah
noryeokal geoya
노력할 거예요
noh-ryuh-kahl guh-yae-yoh
noryeokal geoyeyo
노력할 겁니다
noh-ryuh-kahl guhm-nee-dah
noryeokal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
노력하세요
noh-ryuh-kah-sae-yoh
noryeokaseyo
Suggestion / Let's Polite (요)
노력해요
noh-ryuh-kae-yoh
noryeokaeyo
Question Polite (요)
노력해요?
noh-ryuh-kae-yoh-?
noryeokaeyo?
Connective "and" — (고)
노력하고
noh-ryuh-kah-goh
noryeokago
Conditional "if" — (면)
노력하면
noh-ryuh-kah-myuhn
noryeokamyeon
Progressive (고 있어요)
노력하고 있어요
noh-ryuh-kah-goh ee-ssuh-yoh
noryeokago isseoyo
Want to (고 싶어요)
노력하고 싶어요
noh-ryuh-kah-goh shee-puh-yoh
noryeokago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
노력할 수 있어요
noh-ryuh-kahl soo ee-ssuh-yoh
noryeokal su isseoyo
Because / So (아/어서)
노력해서
noh-ryuh-kae-suh
noryeokaeseo
Noun form — (기)
노력하기
noh-ryuh-kah-gee
noryeokagi
Noun form — (음)
노력함
noh-ryuh-kahm
noryeokam