Verbseoul.
regular
덧붙다deotbutdato attach to, to stick to (a thing in addition)

To say to attach to, to stick to (a thing in addition) politely in the present tense, use 덧붙어요 (duht-boo-tuh-yoh). Below is the full conjugation of 덧붙다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
덧붙어
duht-boo-tuh
덧붙어요
duht-boo-tuh-yoh
덧붙습니다
duht-boot-seum-nee-dah
Past
덧붙었어
duht-boo-tuh-ssuh
덧붙었어요
duht-boo-tuh-ssuh-yoh
덧붙었습니다
duht-boo-tuh-sseum-nee-dah
Future
덧붙을 거야
duht-boo-teul- -guh-yah
덧붙을 거예요
duht-boo-teul- -guh-yae-yoh
덧붙을 겁니다
duht-boo-teul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
덧붙으세요
duht-boo-teu-sae-yoh
Suggestion / Let's Polite (요)
덧붙어요
duht-boo-tuh-yoh
Question Polite (요)
덧붙어요?
duht-boo-tuh-yoh-?
Connective “and” — (고)
덧붙고
duht-boot-goh
Conditional “if” — (면)
덧붙으면
duht-boo-teu-myuhn
Noun form — (기)
덧붙음
duht-boo-teum