만연해
mah-nyuhn-hae
manyeonhae
만연하다
To say to be widespread, to be rampant politely in the present tense, use 만연해요 (mah-nyuhn-hae-yoh) · manyeonhaeyo. Below is the full conjugation of 만연하다 across the three tenses and three everyday speech levels.
Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →
Conjugation table
pron. = pronunciation guide · RR = Revised Romanization
Highlighted = where the stem changes
| Tense | Casual (반말) | Polite (요) | Formal (합니다) |
|---|---|---|---|
| Present | 만연해요 mah-nyuhn-hae-yoh manyeonhaeyo | 만연합니다 mah-nyuhn-hahm-nee-dah manyeonhamnida | |
| Past | 만연했어 mah-nyuhn-hae-ssuh manyeonhaesseo | 만연했어요 mah-nyuhn-hae-ssuh-yoh manyeonhaesseoyo | 만연했습니다 mah-nyuhn-hae-sseum-nee-dah manyeonhaesseumnida |
| Future | 만연할 거야 mah-nyuhn-hahl guh-yah manyeonhal geoya | 만연할 거예요 mah-nyuhn-hahl guh-yae-yoh manyeonhal geoyeyo | 만연할 겁니다 mah-nyuhn-hahl guhm-nee-dah manyeonhal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
만연하세요
mah-nyuhn-hah-sae-yoh
manyeonhaseyo
Suggestion / Let's Polite (요)
만연해요
mah-nyuhn-hae-yoh
manyeonhaeyo
Question Polite (요)
만연해요?
mah-nyuhn-hae-yoh-?
manyeonhaeyo?
Connective "and" — (고)
만연하고
mah-nyuhn-hah-goh
manyeonhago
Conditional "if" — (면)
만연하면
mah-nyuhn-hah-myuhn
manyeonhamyeon
Progressive (고 있어요)
만연하고 있어요
mah-nyuhn-hah-goh ee-ssuh-yoh
manyeonhago isseoyo
Want to (고 싶어요)
만연하고 싶어요
mah-nyuhn-hah-goh shee-puh-yoh
manyeonhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
만연할 수 있어요
mah-nyuhn-hahl soo ee-ssuh-yoh
manyeonhal su isseoyo
Because / So (아/어서)
만연해서
mah-nyuhn-hae-suh
manyeonhaeseo
Noun form — (기)
만연하기
mah-nyuhn-hah-gee
manyeonhagi
Noun form — (음)
만연함
mah-nyuhn-hahm
manyeonham