Verbseoul.
하다 verb (adj)
다정하다dajeonghadato be friendly (towards someone), act in a kind way

To say to be friendly (towards someone), act in a kind way politely in the present tense, use 다정해요 (dah-chuhng-hae-yoh). Below is the full conjugation of 다정하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
다정해
dah-chuhng-hae
다정해요
dah-chuhng-hae-yoh
다정합니다
dah-chuhng-hahm-nee-dah
Past
다정했어
dah-chuhng-hae-ssuh
다정했어요
dah-chuhng-hae-ssuh-yoh
다정했습니다
dah-chuhng-hae-sseum-nee-dah
Future
다정할 거야
dah-chuhng-hahl- -guh-yah
다정할 거예요
dah-chuhng-hahl- -guh-yae-yoh
다정할 겁니다
dah-chuhng-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
다정하세요
dah-chuhng-hah-sae-yoh
Suggestion / Let's Polite (요)
다정해요
dah-chuhng-hae-yoh
Question Polite (요)
다정해요?
dah-chuhng-hae-yoh-?
Connective “and” — (고)
다정하고
dah-chuhng-hah-goh
Conditional “if” — (면)
다정하면
dah-chuhng-hah-myuhn
Noun form — (기)
다정함
dah-chuhng-hahm