Verbseoul.
ㅂ irregular (adj)
자연스럽다jayeonseureopdato be natural, unaffected

To say to be natural, unaffected politely in the present tense, use 자연스러워요 (chah-yuhn-seu-ruh-wuh-yoh). Below is the full conjugation of 자연스럽다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
자연스러워
chah-yuhn-seu-ruh-wuh
자연스러워요
chah-yuhn-seu-ruh-wuh-yoh
자연스럽습니다
chah-yuhn-seu-ruhp-sseum-nee-dah
Past
자연스러웠어
chah-yuhn-seu-ruh-wuh-ssuh
자연스러웠어요
chah-yuhn-seu-ruh-wuh-ssuh-yoh
자연스러웠습니다
chah-yuhn-seu-ruh-wuh-sseum-nee-dah
Future
자연스러울 거야
chah-yuhn-seu-ruh-ool- -guh-yah
자연스러울 거예요
chah-yuhn-seu-ruh-ool- -guh-yae-yoh
자연스러울 겁니다
chah-yuhn-seu-ruh-ool- -guhm-nee-dah

Other useful forms

Command Polite (세요)
자연스러우세요
chah-yuhn-seu-ruh-oo-sae-yoh
Suggestion / Let's Polite (요)
자연스러워요
chah-yuhn-seu-ruh-wuh-yoh
Question Polite (요)
자연스러워요?
chah-yuhn-seu-ruh-wuh-yoh-?
Connective “and” — (고)
자연스럽고
chah-yuhn-seu-ruhp-goh
Conditional “if” — (면)
자연스러우면
chah-yuhn-seu-ruh-oo-myuhn
Noun form — (기)
자연스러움
chah-yuhn-seu-ruh-oom