Verbseoul.
하다 verb
연락하다yeonrakhadato notify

To say to notify politely in the present tense, use 연락해요 (yuhl-rah-kae-yoh). Below is the full conjugation of 연락하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
연락해
yuhl-rah-kae
연락해요
yuhl-rah-kae-yoh
연락합니다
yuhl-rah-kahm-nee-dah
Past
연락했어
yuhl-rah-kae-ssuh
연락했어요
yuhl-rah-kae-ssuh-yoh
연락했습니다
yuhl-rah-kae-sseum-nee-dah
Future
연락할 거야
yuhl-rah-kahl- -guh-yah
연락할 거예요
yuhl-rah-kahl- -guh-yae-yoh
연락할 겁니다
yuhl-rah-kahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
연락하세요
yuhl-rah-kah-sae-yoh
Suggestion / Let's Polite (요)
연락해요
yuhl-rah-kae-yoh
Question Polite (요)
연락해요?
yuhl-rah-kae-yoh-?
Connective “and” — (고)
연락하고
yuhl-rah-kah-goh
Conditional “if” — (면)
연락하면
yuhl-rah-kah-myuhn
Noun form — (기)
연락함
yuhl-rah-kahm