Verbseoul.
하다 verb (adj)

심심하다 conjugation (simsimhada, bored, boring)

To say bored, boring politely in the present tense, use 심심해요 (sheem-sheem-hae-yoh) · simsimhaeyo. Below is the full conjugation of 심심하다 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
심심해
sheem-sheem-hae
simsimhae
심심해요
sheem-sheem-hae-yoh
simsimhaeyo
심심합니다
sheem-sheem-hahm-nee-dah
simsimhamnida
Past
심심했어
sheem-sheem-hae-ssuh
simsimhaesseo
심심했어요
sheem-sheem-hae-ssuh-yoh
simsimhaesseoyo
심심했습니다
sheem-sheem-hae-sseum-nee-dah
simsimhaesseumnida
Future
심심할 거야
sheem-sheem-hahl guh-yah
simsimhal geoya
심심할 거예요
sheem-sheem-hahl guh-yae-yoh
simsimhal geoyeyo
심심할 겁니다
sheem-sheem-hahl guhm-nee-dah
simsimhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
심심하세요
sheem-sheem-hah-sae-yoh
simsimhaseyo
Suggestion / Let's Polite (요)
심심해요
sheem-sheem-hae-yoh
simsimhaeyo
Question Polite (요)
심심해요?
sheem-sheem-hae-yoh-?
simsimhaeyo?
Connective "and" — (고)
심심하고
sheem-sheem-hah-goh
simsimhago
Conditional "if" — (면)
심심하면
sheem-sheem-hah-myuhn
simsimhamyeon
Progressive (고 있어요)
심심하고 있어요
sheem-sheem-hah-goh ee-ssuh-yoh
simsimhago isseoyo
Want to (고 싶어요)
심심하고 싶어요
sheem-sheem-hah-goh shee-puh-yoh
simsimhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
심심할 수 있어요
sheem-sheem-hahl soo ee-ssuh-yoh
simsimhal su isseoyo
Because / So (아/어서)
심심해서
sheem-sheem-hae-suh
simsimhaeseo
Noun form — (기)
심심하기
sheem-sheem-hah-gee
simsimhagi
Noun form — (음)
심심함
sheem-sheem-hahm
simsimham