Verbseoul.
하다 verb
청소하다cheongsohadato clean

To say to clean politely in the present tense, use 청소해요 (chuhng-soh-hae-yoh). Below is the full conjugation of 청소하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
청소해
chuhng-soh-hae
청소해요
chuhng-soh-hae-yoh
청소합니다
chuhng-soh-hahm-nee-dah
Past
청소했어
chuhng-soh-hae-ssuh
청소했어요
chuhng-soh-hae-ssuh-yoh
청소했습니다
chuhng-soh-hae-sseum-nee-dah
Future
청소할 거야
chuhng-soh-hahl- -guh-yah
청소할 거예요
chuhng-soh-hahl- -guh-yae-yoh
청소할 겁니다
chuhng-soh-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
청소하세요
chuhng-soh-hah-sae-yoh
Suggestion / Let's Polite (요)
청소해요
chuhng-soh-hae-yoh
Question Polite (요)
청소해요?
chuhng-soh-hae-yoh-?
Connective “and” — (고)
청소하고
chuhng-soh-hah-goh
Conditional “if” — (면)
청소하면
chuhng-soh-hah-myuhn
Noun form — (기)
청소함
chuhng-soh-hahm