Verbseoul.
하다 verb
투항하다tuhanghadato surrender

To say to surrender politely in the present tense, use 투항해요 (too-hahng-hae-yoh). Below is the full conjugation of 투항하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
투항해
too-hahng-hae
투항해요
too-hahng-hae-yoh
투항합니다
too-hahng-hahm-nee-dah
Past
투항했어
too-hahng-hae-ssuh
투항했어요
too-hahng-hae-ssuh-yoh
투항했습니다
too-hahng-hae-sseum-nee-dah
Future
투항할 거야
too-hahng-hahl- -guh-yah
투항할 거예요
too-hahng-hahl- -guh-yae-yoh
투항할 겁니다
too-hahng-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
투항하세요
too-hahng-hah-sae-yoh
Suggestion / Let's Polite (요)
투항해요
too-hahng-hae-yoh
Question Polite (요)
투항해요?
too-hahng-hae-yoh-?
Connective “and” — (고)
투항하고
too-hahng-hah-goh
Conditional “if” — (면)
투항하면
too-hahng-hah-myuhn
Noun form — (기)
투항함
too-hahng-hahm