Verbseoul.
하다 verb

방해하다 conjugation (banghaehada, to hinder or obstruct)

To say to hinder or obstruct politely in the present tense, use 방해해요 (bahng-hae-hae-yoh) · banghaehaeyo. Below is the full conjugation of 방해하다 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

TenseCasual (반말)Polite (요)Formal (합니다)
Present
방해해
bahng-hae-hae
banghaehae
방해해요
bahng-hae-hae-yoh
banghaehaeyo
방해합니다
bahng-hae-hahm-nee-dah
banghaehamnida
Past
방해했어
bahng-hae-hae-ssuh
banghaehaesseo
방해했어요
bahng-hae-hae-ssuh-yoh
banghaehaesseoyo
방해했습니다
bahng-hae-hae-sseum-nee-dah
banghaehaesseumnida
Future
방해할 거야
bahng-hae-hahl guh-yah
banghaehal geoya
방해할 거예요
bahng-hae-hahl guh-yae-yoh
banghaehal geoyeyo
방해할 겁니다
bahng-hae-hahl guhm-nee-dah
banghaehal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
방해하세요
bahng-hae-hah-sae-yoh
banghaehaseyo
Suggestion / Let's Polite (요)
방해해요
bahng-hae-hae-yoh
banghaehaeyo
Question Polite (요)
방해해요?
bahng-hae-hae-yoh-?
banghaehaeyo?
Connective "and" — (고)
방해하고
bahng-hae-hah-goh
banghaehago
Conditional "if" — (면)
방해하면
bahng-hae-hah-myuhn
banghaehamyeon
Progressive (고 있어요)
방해하고 있어요
bahng-hae-hah-goh ee-ssuh-yoh
banghaehago isseoyo
Want to (고 싶어요)
방해하고 싶어요
bahng-hae-hah-goh shee-puh-yoh
banghaehago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
방해할 수 있어요
bahng-hae-hahl soo ee-ssuh-yoh
banghaehal su isseoyo
Because / So (아/어서)
방해해서
bahng-hae-hae-suh
banghaehaeseo
Noun form — (기)
방해하기
bahng-hae-hah-gee
banghaehagi
Noun form — (음)
방해함
bahng-hae-hahm
banghaeham