Verbseoul.
하다 verb (adj)
썩음썩음하다sseokeumsseokeumhadato be almost rotten

To say to be almost rotten politely in the present tense, use 썩음썩음해요 (ssuh-geum-ssuh-geum-hae-yoh). Below is the full conjugation of 썩음썩음하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
썩음썩음해
ssuh-geum-ssuh-geum-hae
썩음썩음해요
ssuh-geum-ssuh-geum-hae-yoh
썩음썩음합니다
ssuh-geum-ssuh-geum-hahm-nee-dah
Past
썩음썩음했어
ssuh-geum-ssuh-geum-hae-ssuh
썩음썩음했어요
ssuh-geum-ssuh-geum-hae-ssuh-yoh
썩음썩음했습니다
ssuh-geum-ssuh-geum-hae-sseum-nee-dah
Future
썩음썩음할 거야
ssuh-geum-ssuh-geum-hahl- -guh-yah
썩음썩음할 거예요
ssuh-geum-ssuh-geum-hahl- -guh-yae-yoh
썩음썩음할 겁니다
ssuh-geum-ssuh-geum-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
썩음썩음하세요
ssuh-geum-ssuh-geum-hah-sae-yoh
Suggestion / Let's Polite (요)
썩음썩음해요
ssuh-geum-ssuh-geum-hae-yoh
Question Polite (요)
썩음썩음해요?
ssuh-geum-ssuh-geum-hae-yoh-?
Connective “and” — (고)
썩음썩음하고
ssuh-geum-ssuh-geum-hah-goh
Conditional “if” — (면)
썩음썩음하면
ssuh-geum-ssuh-geum-hah-myuhn
Noun form — (기)
썩음썩음함
ssuh-geum-ssuh-geum-hahm