Verbseoul.
하다 verb
공언하다gongeonhadato prattle, to spew meaningless words

To say to prattle, to spew meaningless words politely in the present tense, use 공언해요 (gohng-uhn-hae-yoh). Below is the full conjugation of 공언하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
공언해
gohng-uhn-hae
공언해요
gohng-uhn-hae-yoh
공언합니다
gohng-uhn-hahm-nee-dah
Past
공언했어
gohng-uhn-hae-ssuh
공언했어요
gohng-uhn-hae-ssuh-yoh
공언했습니다
gohng-uhn-hae-sseum-nee-dah
Future
공언할 거야
gohng-uhn-hahl- -guh-yah
공언할 거예요
gohng-uhn-hahl- -guh-yae-yoh
공언할 겁니다
gohng-uhn-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
공언하세요
gohng-uhn-hah-sae-yoh
Suggestion / Let's Polite (요)
공언해요
gohng-uhn-hae-yoh
Question Polite (요)
공언해요?
gohng-uhn-hae-yoh-?
Connective “and” — (고)
공언하고
gohng-uhn-hah-goh
Conditional “if” — (면)
공언하면
gohng-uhn-hah-myuhn
Noun form — (기)
공언함
gohng-uhn-hahm