Verbseoul.
르 irregular

들르다 conjugation (deulreuda, to stop by)

To say to stop by politely in the present tense, use 들러요 (deul-ruh-yoh) · deulreoyo. Below is the full conjugation of 들르다 across the three tenses and three everyday speech levels.

Grammar note (르 irregular): 르-irregular verbs and adjectives end in 르다. Before the -어/-아 suffix the 르 splits: the ㅡ vowel drops and a ㄹ is added as the final consonant of the preceding syllable. 모르다 (not to know) → 몰라요 (not *모르어요), 부르다 (to call) → 불러요. Before consonant suffixes 르 stays intact: 모르고, 부르지. 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
들러
deul-ruh
deulreo
들러요
deul-ruh-yoh
deulreoyo
들릅니다
deul-reum-nee-dah
deulreumnida
Past
들렀어
deul-ruh-ssuh
deulreosseo
들렀어요
deul-ruh-ssuh-yoh
deulreosseoyo
들렀습니다
deul-ruh-sseum-nee-dah
deulreosseumnida
Future
들를 거야
deul-reul guh-yah
deulreul geoya
들를 거예요
deul-reul guh-yae-yoh
deulreul geoyeyo
들를 겁니다
deul-reul guhm-nee-dah
deulreul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
들르세요
deul-reu-sae-yoh
deulreuseyo
Suggestion / Let's Polite (요)
들러요
deul-ruh-yoh
deulreoyo
Question Polite (요)
들러요?
deul-ruh-yoh-?
deulreoyo?
Connective "and" — (고)
들르고
deul-reu-goh
deulreugo
Conditional "if" — (면)
들르면
deul-reu-myuhn
deulreumyeon
Progressive (고 있어요)
들르고 있어요
deul-reu-goh ee-ssuh-yoh
deulreugo isseoyo
Want to (고 싶어요)
들르고 싶어요
deul-reu-goh shee-puh-yoh
deulreugo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
들를 수 있어요
deul-reul soo ee-ssuh-yoh
deulreul su isseoyo
Because / So (아/어서)
들러서
deul-ruh-suh
deulreoseo
Noun form — (기)
들르기
deul-reu-gee
deulreugi
Noun form — (음)
들름
deul-reum
deulreum