Verbseoul.
하다 verb
개방하다gaebanghadato open (to the public)

To say to open (to the public) politely in the present tense, use 개방해요 (gae-bahng-hae-yoh). Below is the full conjugation of 개방하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
개방해
gae-bahng-hae
개방해요
gae-bahng-hae-yoh
개방합니다
gae-bahng-hahm-nee-dah
Past
개방했어
gae-bahng-hae-ssuh
개방했어요
gae-bahng-hae-ssuh-yoh
개방했습니다
gae-bahng-hae-sseum-nee-dah
Future
개방할 거야
gae-bahng-hahl- -guh-yah
개방할 거예요
gae-bahng-hahl- -guh-yae-yoh
개방할 겁니다
gae-bahng-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
개방하세요
gae-bahng-hah-sae-yoh
Suggestion / Let's Polite (요)
개방해요
gae-bahng-hae-yoh
Question Polite (요)
개방해요?
gae-bahng-hae-yoh-?
Connective “and” — (고)
개방하고
gae-bahng-hah-goh
Conditional “if” — (면)
개방하면
gae-bahng-hah-myuhn
Noun form — (기)
개방함
gae-bahng-hahm