Verbseoul.
하다 verb (adj)
부지런하다bujireonhadato be hard-working, to be industrious

To say to be hard-working, to be industrious politely in the present tense, use 부지런해요 (boo-chee-ruhn-hae-yoh). Below is the full conjugation of 부지런하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
부지런해
boo-chee-ruhn-hae
부지런해요
boo-chee-ruhn-hae-yoh
부지런합니다
boo-chee-ruhn-hahm-nee-dah
Past
부지런했어
boo-chee-ruhn-hae-ssuh
부지런했어요
boo-chee-ruhn-hae-ssuh-yoh
부지런했습니다
boo-chee-ruhn-hae-sseum-nee-dah
Future
부지런할 거야
boo-chee-ruhn-hahl- -guh-yah
부지런할 거예요
boo-chee-ruhn-hahl- -guh-yae-yoh
부지런할 겁니다
boo-chee-ruhn-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
부지런하세요
boo-chee-ruhn-hah-sae-yoh
Suggestion / Let's Polite (요)
부지런해요
boo-chee-ruhn-hae-yoh
Question Polite (요)
부지런해요?
boo-chee-ruhn-hae-yoh-?
Connective “and” — (고)
부지런하고
boo-chee-ruhn-hah-goh
Conditional “if” — (면)
부지런하면
boo-chee-ruhn-hah-myuhn
Noun form — (기)
부지런함
boo-chee-ruhn-hahm