Verbseoul.
하다 verb (adj)
진부하다jinbuhadato be hackneyed

To say to be hackneyed politely in the present tense, use 진부해요 (cheen-boo-hae-yoh). Below is the full conjugation of 진부하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
진부해
cheen-boo-hae
진부해요
cheen-boo-hae-yoh
진부합니다
cheen-boo-hahm-nee-dah
Past
진부했어
cheen-boo-hae-ssuh
진부했어요
cheen-boo-hae-ssuh-yoh
진부했습니다
cheen-boo-hae-sseum-nee-dah
Future
진부할 거야
cheen-boo-hahl- -guh-yah
진부할 거예요
cheen-boo-hahl- -guh-yae-yoh
진부할 겁니다
cheen-boo-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
진부하세요
cheen-boo-hah-sae-yoh
Suggestion / Let's Polite (요)
진부해요
cheen-boo-hae-yoh
Question Polite (요)
진부해요?
cheen-boo-hae-yoh-?
Connective “and” — (고)
진부하고
cheen-boo-hah-goh
Conditional “if” — (면)
진부하면
cheen-boo-hah-myuhn
Noun form — (기)
진부함
cheen-boo-hahm