Verbseoul.
ㅂ irregular (adj)

두렵다 conjugation (duryeopda, to be fearful, to be scared)

To say to be fearful, to be scared politely in the present tense, use 두려워요 (doo-ryuh-wuh-yoh) · duryeowoyo. Below is the full conjugation of 두렵다 across the three tenses and three everyday speech levels.

Grammar note (ㅂ irregular (adj)): ㅂ-irregular adjectives follow the same rule as ㅂ-irregular verbs: the ㅂ changes to 우 when a vowel suffix follows. 덥다 (to be hot) becomes 더워요; 쉽다 (to be easy) becomes 쉬워요. The ㅂ is kept intact before consonant suffixes: 덥고, 쉽지. See all ㅂ-irregular verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
두려워
doo-ryuh-wuh
duryeowo
두려워요
doo-ryuh-wuh-yoh
duryeowoyo
두렵습니다
doo-ryuhp-sseum-nee-dah
duryeopsseumnida
Past
두려웠어
doo-ryuh-wuh-ssuh
duryeowosseo
두려웠어요
doo-ryuh-wuh-ssuh-yoh
duryeowosseoyo
두려웠습니다
doo-ryuh-wuh-sseum-nee-dah
duryeowosseumnida
Future
두려울 거야
doo-ryuh-ool guh-yah
duryeoul geoya
두려울 거예요
doo-ryuh-ool guh-yae-yoh
duryeoul geoyeyo
두려울 겁니다
doo-ryuh-ool guhm-nee-dah
duryeoul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
두려우세요
doo-ryuh-oo-sae-yoh
duryeouseyo
Suggestion / Let's Polite (요)
두려워요
doo-ryuh-wuh-yoh
duryeowoyo
Question Polite (요)
두려워요?
doo-ryuh-wuh-yoh-?
duryeowoyo?
Connective "and" — (고)
두렵고
doo-ryuhp-goh
duryeopgo
Conditional "if" — (면)
두려우면
doo-ryuh-oo-myuhn
duryeoumyeon
Progressive (고 있어요)
두렵고 있어요
doo-ryuhp-goh ee-ssuh-yoh
duryeopgo isseoyo
Want to (고 싶어요)
두렵고 싶어요
doo-ryuhp-goh shee-puh-yoh
duryeopgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
두려울 수 있어요
doo-ryuh-ool soo ee-ssuh-yoh
duryeoul su isseoyo
Because / So (아/어서)
두려워서
doo-ryuh-wuh-suh
duryeowoseo
Noun form — (기)
두렵기
doo-ryuhp-gee
duryeopgi
Noun form — (음)
두려움
doo-ryuh-oom
duryeoum