Verbseoul.
regular
갇히다gathidato be locked up, to be confined

To say to be locked up, to be confined politely in the present tense, use 갇혀요 (gah-tyuh-yoh). Below is the full conjugation of 갇히다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
갇혀
gah-tyuh
갇혀요
gah-tyuh-yoh
갇힙니다
gah-teem-nee-dah
Past
갇혔어
gah-tyuh-ssuh
갇혔어요
gah-tyuh-ssuh-yoh
갇혔습니다
gah-tyuh-sseum-nee-dah
Future
갇힐 거야
gah-teel- -guh-yah
갇힐 거예요
gah-teel- -guh-yae-yoh
갇힐 겁니다
gah-teel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
갇히세요
gah-tee-sae-yoh
Suggestion / Let's Polite (요)
갇혀요
gah-tyuh-yoh
Question Polite (요)
갇혀요?
gah-tyuh-yoh-?
Connective “and” — (고)
갇히고
gah-tee-goh
Conditional “if” — (면)
갇히면
gah-tee-myuhn
Noun form — (기)
갇힘
gah-teem