Verbseoul.
하다 verb
급증하다geupjeunghadato surge, to increase rapidly

To say to surge, to increase rapidly politely in the present tense, use 급증해요 (geup-cheung-hae-yoh). Below is the full conjugation of 급증하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
급증해
geup-cheung-hae
급증해요
geup-cheung-hae-yoh
급증합니다
geup-cheung-hahm-nee-dah
Past
급증했어
geup-cheung-hae-ssuh
급증했어요
geup-cheung-hae-ssuh-yoh
급증했습니다
geup-cheung-hae-sseum-nee-dah
Future
급증할 거야
geup-cheung-hahl- -guh-yah
급증할 거예요
geup-cheung-hahl- -guh-yae-yoh
급증할 겁니다
geup-cheung-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
급증하세요
geup-cheung-hah-sae-yoh
Suggestion / Let's Polite (요)
급증해요
geup-cheung-hae-yoh
Question Polite (요)
급증해요?
geup-cheung-hae-yoh-?
Connective “and” — (고)
급증하고
geup-cheung-hah-goh
Conditional “if” — (면)
급증하면
geup-cheung-hah-myuhn
Noun form — (기)
급증함
geup-cheung-hahm