Verbseoul.
르 irregular (adj)

그르다 conjugation (geureuda, to be wrong, to be hopeless)

To say to be wrong, to be hopeless politely in the present tense, use 글러요 (geul-ruh-yoh) · geulreoyo. Below is the full conjugation of 그르다 across the three tenses and three everyday speech levels.

Grammar note (르 irregular (adj)): 르-irregular adjectives follow the same pattern as 르-irregular verbs: 르 splits before -어/-아 suffixes. 다르다 (to be different) → 달라요, 빠르다 (to be fast) → 빨라요. Before consonants 르 is unchanged: 다르고, 빠르지. See all 르-irregular verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
글러
geul-ruh
geulreo
글러요
geul-ruh-yoh
geulreoyo
그릅니다
geu-reum-nee-dah
geureumnida
Past
글렀어
geul-ruh-ssuh
geulreosseo
글렀어요
geul-ruh-ssuh-yoh
geulreosseoyo
글렀습니다
geul-ruh-sseum-nee-dah
geulreosseumnida
Future
그를 거야
geu-reul guh-yah
geureul geoya
그를 거예요
geu-reul guh-yae-yoh
geureul geoyeyo
그를 겁니다
geu-reul guhm-nee-dah
geureul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
그르세요
geu-reu-sae-yoh
geureuseyo
Suggestion / Let's Polite (요)
글러요
geul-ruh-yoh
geulreoyo
Question Polite (요)
글러요?
geul-ruh-yoh-?
geulreoyo?
Connective "and" — (고)
그르고
geu-reu-goh
geureugo
Conditional "if" — (면)
그르면
geu-reu-myuhn
geureumyeon
Progressive (고 있어요)
그르고 있어요
geu-reu-goh ee-ssuh-yoh
geureugo isseoyo
Want to (고 싶어요)
그르고 싶어요
geu-reu-goh shee-puh-yoh
geureugo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
그를 수 있어요
geu-reul soo ee-ssuh-yoh
geureul su isseoyo
Because / So (아/어서)
글러서
geul-ruh-suh
geulreoseo
Noun form — (기)
그르기
geu-reu-gee
geureugi
Noun form — (음)
그름
geu-reum
geureum