수사해
soo-sah-hae
susahae
수사하다
To say to investigate politely in the present tense, use 수사해요 (soo-sah-hae-yoh) · susahaeyo. Below is the full conjugation of 수사하다 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 | 수사해요 soo-sah-hae-yoh susahaeyo | 수사합니다 soo-sah-hahm-nee-dah susahamnida | |
| Past | 수사했어 soo-sah-hae-ssuh susahaesseo | 수사했어요 soo-sah-hae-ssuh-yoh susahaesseoyo | 수사했습니다 soo-sah-hae-sseum-nee-dah susahaesseumnida |
| Future | 수사할 거야 soo-sah-hahl guh-yah susahal geoya | 수사할 거예요 soo-sah-hahl guh-yae-yoh susahal geoyeyo | 수사할 겁니다 soo-sah-hahl guhm-nee-dah susahal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
수사하세요
soo-sah-hah-sae-yoh
susahaseyo
Suggestion / Let's Polite (요)
수사해요
soo-sah-hae-yoh
susahaeyo
Question Polite (요)
수사해요?
soo-sah-hae-yoh-?
susahaeyo?
Connective "and" — (고)
수사하고
soo-sah-hah-goh
susahago
Conditional "if" — (면)
수사하면
soo-sah-hah-myuhn
susahamyeon
Progressive (고 있어요)
수사하고 있어요
soo-sah-hah-goh ee-ssuh-yoh
susahago isseoyo
Want to (고 싶어요)
수사하고 싶어요
soo-sah-hah-goh shee-puh-yoh
susahago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
수사할 수 있어요
soo-sah-hahl soo ee-ssuh-yoh
susahal su isseoyo
Because / So (아/어서)
수사해서
soo-sah-hae-suh
susahaeseo
Noun form — (기)
수사하기
soo-sah-hah-gee
susahagi
Noun form — (음)
수사함
soo-sah-hahm
susaham