Verbseoul.
하다 verb (adj)
듯하다deuthadato be regarded as

To say to be regarded as politely in the present tense, use 듯해요 (deu-tae-yoh). Below is the full conjugation of 듯하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
듯해
deu-tae
듯해요
deu-tae-yoh
듯합니다
deu-tahm-nee-dah
Past
듯했어
deu-tae-ssuh
듯했어요
deu-tae-ssuh-yoh
듯했습니다
deu-tae-sseum-nee-dah
Future
듯할 거야
deu-tahl- -guh-yah
듯할 거예요
deu-tahl- -guh-yae-yoh
듯할 겁니다
deu-tahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
듯하세요
deu-tah-sae-yoh
Suggestion / Let's Polite (요)
듯해요
deu-tae-yoh
Question Polite (요)
듯해요?
deu-tae-yoh-?
Connective “and” — (고)
듯하고
deu-tah-goh
Conditional “if” — (면)
듯하면
deu-tah-myuhn
Noun form — (기)
듯함
deu-tahm