Verbseoul.
하다 verb (adj)
깔끔하다kkalkkeumhadaneat, tidy

To say neat, tidy politely in the present tense, use 깔끔해요 (ggahl-ggeum-hae-yoh). Below is the full conjugation of 깔끔하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
깔끔해
ggahl-ggeum-hae
깔끔해요
ggahl-ggeum-hae-yoh
깔끔합니다
ggahl-ggeum-hahm-nee-dah
Past
깔끔했어
ggahl-ggeum-hae-ssuh
깔끔했어요
ggahl-ggeum-hae-ssuh-yoh
깔끔했습니다
ggahl-ggeum-hae-sseum-nee-dah
Future
깔끔할 거야
ggahl-ggeum-hahl- -guh-yah
깔끔할 거예요
ggahl-ggeum-hahl- -guh-yae-yoh
깔끔할 겁니다
ggahl-ggeum-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
깔끔하세요
ggahl-ggeum-hah-sae-yoh
Suggestion / Let's Polite (요)
깔끔해요
ggahl-ggeum-hae-yoh
Question Polite (요)
깔끔해요?
ggahl-ggeum-hae-yoh-?
Connective “and” — (고)
깔끔하고
ggahl-ggeum-hah-goh
Conditional “if” — (면)
깔끔하면
ggahl-ggeum-hah-myuhn
Noun form — (기)
깔끔함
ggahl-ggeum-hahm