Verbseoul.
regular

끄덕이다 conjugation (kkeudeokida, to nod)

To say to nod politely in the present tense, use 끄덕여요 (ggeu-duh-gyuh-yoh) · kkeudeogyeoyo. Below is the full conjugation of 끄덕이다 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
끄덕여
ggeu-duh-gyuh
kkeudeogyeo
끄덕여요
ggeu-duh-gyuh-yoh
kkeudeogyeoyo
끄덕입니다
ggeu-duh-geem-nee-dah
kkeudeogimnida
Past
끄덕였어
ggeu-duh-gyuh-ssuh
kkeudeogyeosseo
끄덕였어요
ggeu-duh-gyuh-ssuh-yoh
kkeudeogyeosseoyo
끄덕였습니다
ggeu-duh-gyuh-sseum-nee-dah
kkeudeogyeosseumnida
Future
끄덕일 거야
ggeu-duh-geel guh-yah
kkeudeogil geoya
끄덕일 거예요
ggeu-duh-geel guh-yae-yoh
kkeudeogil geoyeyo
끄덕일 겁니다
ggeu-duh-geel guhm-nee-dah
kkeudeogil geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
끄덕이세요
ggeu-duh-gee-sae-yoh
kkeudeogiseyo
Suggestion / Let's Polite (요)
끄덕여요
ggeu-duh-gyuh-yoh
kkeudeogyeoyo
Question Polite (요)
끄덕여요?
ggeu-duh-gyuh-yoh-?
kkeudeogyeoyo?
Connective "and" — (고)
끄덕이고
ggeu-duh-gee-goh
kkeudeogigo
Conditional "if" — (면)
끄덕이면
ggeu-duh-gee-myuhn
kkeudeogimyeon
Progressive (고 있어요)
끄덕이고 있어요
ggeu-duh-gee-goh ee-ssuh-yoh
kkeudeogigo isseoyo
Want to (고 싶어요)
끄덕이고 싶어요
ggeu-duh-gee-goh shee-puh-yoh
kkeudeogigo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
끄덕일 수 있어요
ggeu-duh-geel soo ee-ssuh-yoh
kkeudeogil su isseoyo
Because / So (아/어서)
끄덕여서
ggeu-duh-gyuh-suh
kkeudeogyeoseo
Noun form — (기)
끄덕이기
ggeu-duh-gee-gee
kkeudeogigi
Noun form — (음)
끄덕임
ggeu-duh-geem
kkeudeogim