Verbseoul.
descriptive

많다 conjugation (manda, many, much, a lot, plentiful)

To say many, much, a lot, plentiful politely in the present tense, use 많아요 (mahn-ah-yoh) · maayo. Below is the full conjugation of 많다 across the three tenses and three everyday speech levels.

Grammar note (descriptive): Descriptive verbs (형용사) function like adjectives in Korean and conjugate the same way as regular action verbs. They cannot take the progressive -고 있어요 or imperative forms. 좋다 (to be good) → 좋아요; 크다 (to be big) → 커요 (으-irregular).

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

TenseCasual (반말)Polite (요)Formal (합니다)
Present
많아
mahn-ah
maa
많아요
mahn-ah-yoh
maayo
많습니다
mahn-seum-nee-dah
maseumnida
Past
많았어
mahn-ah-ssuh
maasseo
많았어요
mahn-ah-ssuh-yoh
maasseoyo
많았습니다
mahn-ah-sseum-nee-dah
maasseumnida
Future
많을 거야
mahn-eul guh-yah
maeul geoya
많을 거예요
mahn-eul guh-yae-yoh
maeul geoyeyo
많을 겁니다
mahn-eul guhm-nee-dah
maeul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
많으세요
mahn-eu-sae-yoh
maeuseyo
Suggestion / Let's Polite (요)
많아요
mahn-ah-yoh
maayo
Question Polite (요)
많아요?
mahn-ah-yoh-?
maayo?
Connective "and" — (고)
많고
mahn-goh
mago
Conditional "if" — (면)
많으면
mahn-eu-myuhn
maeumyeon
Progressive (고 있어요)
많고 있어요
mahn-goh ee-ssuh-yoh
mago isseoyo
Want to (고 싶어요)
많고 싶어요
mahn-goh shee-puh-yoh
mago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
많을 수 있어요
mahn-eul soo ee-ssuh-yoh
maeul su isseoyo
Because / So (아/어서)
많아서
mahn-ah-suh
maaseo
Noun form — (기)
많기
mahn-gee
magi
Noun form — (음)
많음
mahn-eum
maeum