Verbseoul.
ㄹ stem (adj)

서툴다 conjugation (seotulda, contraction of 서투르다 (to be clumsy))

To say contraction of 서투르다 (to be clumsy) politely in the present tense, use 서툴어요 (suh-too-ruh-yoh) · seotureoyo. Below is the full conjugation of 서툴다 across the three tenses and three everyday speech levels.

Grammar note (ㄹ stem (adj)): ㄹ-stem adjectives follow the same pattern as ㄹ-stem verbs: the ㄹ is kept before vowel suffixes and drops before ㄴ, ㅂ, and 습니다. 길다 (to be long) → 길어요, 긴, 깁니다. 멀다 (to be far) → 멀어요, 먼, 멉니다. See all ㄹ-stem verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
서툴어
suh-too-ruh
seotureo
서툴어요
suh-too-ruh-yoh
seotureoyo
서툽니다
suh-toom-nee-dah
seotumnida
Past
서툴었어
suh-too-ruh-ssuh
seotureosseo
서툴었어요
suh-too-ruh-ssuh-yoh
seotureosseoyo
서툴었습니다
suh-too-ruh-sseum-nee-dah
seotureosseumnida
Future
서툴 거야
suh-tool guh-yah
seotul geoya
서툴 거예요
suh-tool guh-yae-yoh
seotul geoyeyo
서툴 겁니다
suh-tool guhm-nee-dah
seotul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
서투세요
suh-too-sae-yoh
seotuseyo
Suggestion / Let's Polite (요)
서툴어요
suh-too-ruh-yoh
seotureoyo
Question Polite (요)
서툴어요?
suh-too-ruh-yoh-?
seotureoyo?
Connective "and" — (고)
서툴고
suh-tool-goh
seotulgo
Conditional "if" — (면)
서툴면
suh-tool-myuhn
seotulmyeon
Progressive (고 있어요)
서툴고 있어요
suh-tool-goh ee-ssuh-yoh
seotulgo isseoyo
Want to (고 싶어요)
서툴고 싶어요
suh-tool-goh shee-puh-yoh
seotulgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
서툴 수 있어요
suh-tool soo ee-ssuh-yoh
seotul su isseoyo
Because / So (아/어서)
서툴어서
suh-too-ruh-suh
seotureoseo
Noun form — (기)
서툴기
suh-tool-gee
seotulgi
Noun form — (음)
서툶
suh-toom
seotum