Verbseoul.
하다 verb
노력하다noryeokhadato strive, to exert oneself

To say to strive, to exert oneself politely in the present tense, use 노력해요 (noh-ryuh-kae-yoh). Below is the full conjugation of 노력하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
노력해
noh-ryuh-kae
노력해요
noh-ryuh-kae-yoh
노력합니다
noh-ryuh-kahm-nee-dah
Past
노력했어
noh-ryuh-kae-ssuh
노력했어요
noh-ryuh-kae-ssuh-yoh
노력했습니다
noh-ryuh-kae-sseum-nee-dah
Future
노력할 거야
noh-ryuh-kahl- -guh-yah
노력할 거예요
noh-ryuh-kahl- -guh-yae-yoh
노력할 겁니다
noh-ryuh-kahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
노력하세요
noh-ryuh-kah-sae-yoh
Suggestion / Let's Polite (요)
노력해요
noh-ryuh-kae-yoh
Question Polite (요)
노력해요?
noh-ryuh-kae-yoh-?
Connective “and” — (고)
노력하고
noh-ryuh-kah-goh
Conditional “if” — (면)
노력하면
noh-ryuh-kah-myuhn
Noun form — (기)
노력함
noh-ryuh-kahm