Verbseoul.
regular

덧붙다 conjugation (deotbutda, to 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) · deotbuteoyo. Below is the full conjugation of 덧붙다 across the three tenses and three everyday speech levels.

Grammar note (regular): Regular verbs and adjectives conjugate predictably. Before 어-series suffixes, vowels may contract (가 + 아 → 가, 보 + 아 → 봐), but no consonant in the stem changes. If the final vowel of the stem is ㅏ or ㅗ, use 아; otherwise use 어. Consonant-final stems: 먹 + 어 → 먹어; vowel-final: 가 + 아 → 가.

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

TenseCasual (반말)Polite (요)Formal (합니다)
Present
덧붙어
duht-boo-tuh
deotbuteo
덧붙어요
duht-boo-tuh-yoh
deotbuteoyo
덧붙습니다
duht-boot-seum-nee-dah
deotbutseumnida
Past
덧붙었어
duht-boo-tuh-ssuh
deotbuteosseo
덧붙었어요
duht-boo-tuh-ssuh-yoh
deotbuteosseoyo
덧붙었습니다
duht-boo-tuh-sseum-nee-dah
deotbuteosseumnida
Future
덧붙을 거야
duht-boo-teul guh-yah
deotbuteul geoya
덧붙을 거예요
duht-boo-teul guh-yae-yoh
deotbuteul geoyeyo
덧붙을 겁니다
duht-boo-teul guhm-nee-dah
deotbuteul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
덧붙으세요
duht-boo-teu-sae-yoh
deotbuteuseyo
Suggestion / Let's Polite (요)
덧붙어요
duht-boo-tuh-yoh
deotbuteoyo
Question Polite (요)
덧붙어요?
duht-boo-tuh-yoh-?
deotbuteoyo?
Connective "and" — (고)
덧붙고
duht-boot-goh
deotbutgo
Conditional "if" — (면)
덧붙으면
duht-boo-teu-myuhn
deotbuteumyeon
Progressive (고 있어요)
덧붙고 있어요
duht-boot-goh ee-ssuh-yoh
deotbutgo isseoyo
Want to (고 싶어요)
덧붙고 싶어요
duht-boot-goh shee-puh-yoh
deotbutgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
덧붙을 수 있어요
duht-boo-teul soo ee-ssuh-yoh
deotbuteul su isseoyo
Because / So (아/어서)
덧붙어서
duht-boo-tuh-suh
deotbuteoseo
Noun form — (기)
덧붙기
duht-boot-gee
deotbutgi
Noun form — (음)
덧붙음
duht-boo-teum
deotbuteum