Verbseoul.
하다 verb
전개하다jeongaehadato develop

To say to develop politely in the present tense, use 전개해요 (chuhn-gae-hae-yoh). Below is the full conjugation of 전개하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
전개해
chuhn-gae-hae
전개해요
chuhn-gae-hae-yoh
전개합니다
chuhn-gae-hahm-nee-dah
Past
전개했어
chuhn-gae-hae-ssuh
전개했어요
chuhn-gae-hae-ssuh-yoh
전개했습니다
chuhn-gae-hae-sseum-nee-dah
Future
전개할 거야
chuhn-gae-hahl- -guh-yah
전개할 거예요
chuhn-gae-hahl- -guh-yae-yoh
전개할 겁니다
chuhn-gae-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
전개하세요
chuhn-gae-hah-sae-yoh
Suggestion / Let's Polite (요)
전개해요
chuhn-gae-hae-yoh
Question Polite (요)
전개해요?
chuhn-gae-hae-yoh-?
Connective “and” — (고)
전개하고
chuhn-gae-hah-goh
Conditional “if” — (면)
전개하면
chuhn-gae-hah-myuhn
Noun form — (기)
전개함
chuhn-gae-hahm