Verbseoul.
하다 verb
농담하다nongdamhadato joke

To say to joke politely in the present tense, use 농담해요 (nohng-dahm-hae-yoh). Below is the full conjugation of 농담하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
농담해
nohng-dahm-hae
농담해요
nohng-dahm-hae-yoh
농담합니다
nohng-dahm-hahm-nee-dah
Past
농담했어
nohng-dahm-hae-ssuh
농담했어요
nohng-dahm-hae-ssuh-yoh
농담했습니다
nohng-dahm-hae-sseum-nee-dah
Future
농담할 거야
nohng-dahm-hahl- -guh-yah
농담할 거예요
nohng-dahm-hahl- -guh-yae-yoh
농담할 겁니다
nohng-dahm-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
농담하세요
nohng-dahm-hah-sae-yoh
Suggestion / Let's Polite (요)
농담해요
nohng-dahm-hae-yoh
Question Polite (요)
농담해요?
nohng-dahm-hae-yoh-?
Connective “and” — (고)
농담하고
nohng-dahm-hah-goh
Conditional “if” — (면)
농담하면
nohng-dahm-hah-myuhn
Noun form — (기)
농담함
nohng-dahm-hahm