Verbseoul.
하다 verb (adj)
농후하다nonghuhadathick

To say thick politely in the present tense, use 농후해요 (nohng-hoo-hae-yoh). Below is the full conjugation of 농후하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
농후해
nohng-hoo-hae
농후해요
nohng-hoo-hae-yoh
농후합니다
nohng-hoo-hahm-nee-dah
Past
농후했어
nohng-hoo-hae-ssuh
농후했어요
nohng-hoo-hae-ssuh-yoh
농후했습니다
nohng-hoo-hae-sseum-nee-dah
Future
농후할 거야
nohng-hoo-hahl- -guh-yah
농후할 거예요
nohng-hoo-hahl- -guh-yae-yoh
농후할 겁니다
nohng-hoo-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
농후하세요
nohng-hoo-hah-sae-yoh
Suggestion / Let's Polite (요)
농후해요
nohng-hoo-hae-yoh
Question Polite (요)
농후해요?
nohng-hoo-hae-yoh-?
Connective “and” — (고)
농후하고
nohng-hoo-hah-goh
Conditional “if” — (면)
농후하면
nohng-hoo-hah-myuhn
Noun form — (기)
농후함
nohng-hoo-hahm