Verbseoul.
ㅂ irregular (adj)

고집스럽다 conjugation (gojipseureopda, to be stubborn)

To say to be stubborn politely in the present tense, use 고집스러워요 (goh-cheep-sseu-ruh-wuh-yoh) · gojipsseureowoyo. Below is the full conjugation of 고집스럽다 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
고집스러워
goh-cheep-sseu-ruh-wuh
gojipsseureowo
고집스러워요
goh-cheep-sseu-ruh-wuh-yoh
gojipsseureowoyo
고집스럽습니다
goh-cheep-sseu-ruhp-sseum-nee-dah
gojipsseureopsseumnida
Past
고집스러웠어
goh-cheep-sseu-ruh-wuh-ssuh
gojipsseureowosseo
고집스러웠어요
goh-cheep-sseu-ruh-wuh-ssuh-yoh
gojipsseureowosseoyo
고집스러웠습니다
goh-cheep-sseu-ruh-wuh-sseum-nee-dah
gojipsseureowosseumnida
Future
고집스러울 거야
goh-cheep-sseu-ruh-ool guh-yah
gojipsseureoul geoya
고집스러울 거예요
goh-cheep-sseu-ruh-ool guh-yae-yoh
gojipsseureoul geoyeyo
고집스러울 겁니다
goh-cheep-sseu-ruh-ool guhm-nee-dah
gojipsseureoul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
고집스러우세요
goh-cheep-sseu-ruh-oo-sae-yoh
gojipsseureouseyo
Suggestion / Let's Polite (요)
고집스러워요
goh-cheep-sseu-ruh-wuh-yoh
gojipsseureowoyo
Question Polite (요)
고집스러워요?
goh-cheep-sseu-ruh-wuh-yoh-?
gojipsseureowoyo?
Connective "and" — (고)
고집스럽고
goh-cheep-sseu-ruhp-goh
gojipsseureopgo
Conditional "if" — (면)
고집스러우면
goh-cheep-sseu-ruh-oo-myuhn
gojipsseureoumyeon
Progressive (고 있어요)
고집스럽고 있어요
goh-cheep-sseu-ruhp-goh ee-ssuh-yoh
gojipsseureopgo isseoyo
Want to (고 싶어요)
고집스럽고 싶어요
goh-cheep-sseu-ruhp-goh shee-puh-yoh
gojipsseureopgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
고집스러울 수 있어요
goh-cheep-sseu-ruh-ool soo ee-ssuh-yoh
gojipsseureoul su isseoyo
Because / So (아/어서)
고집스러워서
goh-cheep-sseu-ruh-wuh-suh
gojipsseureowoseo
Noun form — (기)
고집스럽기
goh-cheep-sseu-ruhp-gee
gojipsseureopgi
Noun form — (음)
고집스러움
goh-cheep-sseu-ruh-oom
gojipsseureoum