Verbseoul.
하다 verb (adj)

교활하다 conjugation (gyohwalhada, to be crafty, to be sly)

To say to be crafty, to be sly politely in the present tense, use 교활해요 (gyoh-hwahl-hae-yoh) · gyohwalhaeyo. Below is the full conjugation of 교활하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb (adj)): 하다 adjectives use the same verb 하다 as a suffix to turn descriptive nouns into predicates (행복하다 = to be happy). They conjugate identically to 하다 verbs: the 하 contracts before -아/-어 suffixes to give 해. 행복해요, 행복했어요, 행복합니다. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
교활해
gyoh-hwahl-hae
gyohwalhae
교활해요
gyoh-hwahl-hae-yoh
gyohwalhaeyo
교활합니다
gyoh-hwahl-hahm-nee-dah
gyohwalhamnida
Past
교활했어
gyoh-hwahl-hae-ssuh
gyohwalhaesseo
교활했어요
gyoh-hwahl-hae-ssuh-yoh
gyohwalhaesseoyo
교활했습니다
gyoh-hwahl-hae-sseum-nee-dah
gyohwalhaesseumnida
Future
교활할 거야
gyoh-hwahl-hahl guh-yah
gyohwalhal geoya
교활할 거예요
gyoh-hwahl-hahl guh-yae-yoh
gyohwalhal geoyeyo
교활할 겁니다
gyoh-hwahl-hahl guhm-nee-dah
gyohwalhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
교활하세요
gyoh-hwahl-hah-sae-yoh
gyohwalhaseyo
Suggestion / Let's Polite (요)
교활해요
gyoh-hwahl-hae-yoh
gyohwalhaeyo
Question Polite (요)
교활해요?
gyoh-hwahl-hae-yoh-?
gyohwalhaeyo?
Connective "and" — (고)
교활하고
gyoh-hwahl-hah-goh
gyohwalhago
Conditional "if" — (면)
교활하면
gyoh-hwahl-hah-myuhn
gyohwalhamyeon
Progressive (고 있어요)
교활하고 있어요
gyoh-hwahl-hah-goh ee-ssuh-yoh
gyohwalhago isseoyo
Want to (고 싶어요)
교활하고 싶어요
gyoh-hwahl-hah-goh shee-puh-yoh
gyohwalhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
교활할 수 있어요
gyoh-hwahl-hahl soo ee-ssuh-yoh
gyohwalhal su isseoyo
Because / So (아/어서)
교활해서
gyoh-hwahl-hae-suh
gyohwalhaeseo
Noun form — (기)
교활하기
gyoh-hwahl-hah-gee
gyohwalhagi
Noun form — (음)
교활함
gyoh-hwahl-hahm
gyohwalham