Verbseoul.
regular
알아내다alanaedato find out, to discover

To say to find out, to discover politely in the present tense, use 알아내요 (ah-rah-nae-yoh). Below is the full conjugation of 알아내다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
알아내
ah-rah-nae
알아내요
ah-rah-nae-yoh
알아냅니다
ah-rah-naem-nee-dah
Past
알아냈어
ah-rah-nae-ssuh
알아냈어요
ah-rah-nae-ssuh-yoh
알아냈습니다
ah-rah-nae-sseum-nee-dah
Future
알아낼 거야
ah-rah-nael- -guh-yah
알아낼 거예요
ah-rah-nael- -guh-yae-yoh
알아낼 겁니다
ah-rah-nael- -guhm-nee-dah

Other useful forms

Command Polite (세요)
알아내세요
ah-rah-nae-sae-yoh
Suggestion / Let's Polite (요)
알아내요
ah-rah-nae-yoh
Question Polite (요)
알아내요?
ah-rah-nae-yoh-?
Connective “and” — (고)
알아내고
ah-rah-nae-goh
Conditional “if” — (면)
알아내면
ah-rah-nae-myuhn
Noun form — (기)
알아냄
ah-rah-naem