Verbseoul.
하다 verb
신고하다singohadato report, to notify, to declare

To say to report, to notify, to declare politely in the present tense, use 신고해요 (sheen-goh-hae-yoh). Below is the full conjugation of 신고하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
신고해
sheen-goh-hae
신고해요
sheen-goh-hae-yoh
신고합니다
sheen-goh-hahm-nee-dah
Past
신고했어
sheen-goh-hae-ssuh
신고했어요
sheen-goh-hae-ssuh-yoh
신고했습니다
sheen-goh-hae-sseum-nee-dah
Future
신고할 거야
sheen-goh-hahl- -guh-yah
신고할 거예요
sheen-goh-hahl- -guh-yae-yoh
신고할 겁니다
sheen-goh-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
신고하세요
sheen-goh-hah-sae-yoh
Suggestion / Let's Polite (요)
신고해요
sheen-goh-hae-yoh
Question Polite (요)
신고해요?
sheen-goh-hae-yoh-?
Connective “and” — (고)
신고하고
sheen-goh-hah-goh
Conditional “if” — (면)
신고하면
sheen-goh-hah-myuhn
Noun form — (기)
신고함
sheen-goh-hahm