Verbseoul.
regular
입맞추다ipmatchudato kiss (formal

To say to kiss (formal politely in the present tense, use 입맞춰요 (eem-maht-chwuh-yoh). Below is the full conjugation of 입맞추다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
입맞춰
eem-maht-chwuh
입맞춰요
eem-maht-chwuh-yoh
입맞춥니다
eem-maht-choom-nee-dah
Past
입맞췄어
eem-maht-chwuh-ssuh
입맞췄어요
eem-maht-chwuh-ssuh-yoh
입맞췄습니다
eem-maht-chwuh-sseum-nee-dah
Future
입맞출 거야
eem-maht-chool- -guh-yah
입맞출 거예요
eem-maht-chool- -guh-yae-yoh
입맞출 겁니다
eem-maht-chool- -guhm-nee-dah

Other useful forms

Command Polite (세요)
입맞추세요
eem-maht-choo-sae-yoh
Suggestion / Let's Polite (요)
입맞춰요
eem-maht-chwuh-yoh
Question Polite (요)
입맞춰요?
eem-maht-chwuh-yoh-?
Connective “and” — (고)
입맞추고
eem-maht-choo-goh
Conditional “if” — (면)
입맞추면
eem-maht-choo-myuhn
Noun form — (기)
입맞춤
eem-maht-choom