Verbseoul.
ㄹ stem (adj)
길다gildato be long

To say to be long politely in the present tense, use 길어요 (gee-ruh-yoh). Below is the full conjugation of 길다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
길어
gee-ruh
길어요
gee-ruh-yoh
깁니다
geem-nee-dah
Past
길었어
gee-ruh-ssuh
길었어요
gee-ruh-ssuh-yoh
길었습니다
gee-ruh-sseum-nee-dah
Future
길 거야
geel- -guh-yah
길 거예요
geel- -guh-yae-yoh
길 겁니다
geel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
기세요
gee-sae-yoh
Suggestion / Let's Polite (요)
길어요
gee-ruh-yoh
Question Polite (요)
길어요?
gee-ruh-yoh-?
Connective “and” — (고)
길고
geel-goh
Conditional “if” — (면)
길면
geel-myuhn
Noun form — (기)
geem