Verbseoul.
하다 verb
계획하다gyehoekhadato plan

To say to plan politely in the present tense, use 계획해요 (gyae-hwae-kae-yoh). Below is the full conjugation of 계획하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
계획해
gyae-hwae-kae
계획해요
gyae-hwae-kae-yoh
계획합니다
gyae-hwae-kahm-nee-dah
Past
계획했어
gyae-hwae-kae-ssuh
계획했어요
gyae-hwae-kae-ssuh-yoh
계획했습니다
gyae-hwae-kae-sseum-nee-dah
Future
계획할 거야
gyae-hwae-kahl- -guh-yah
계획할 거예요
gyae-hwae-kahl- -guh-yae-yoh
계획할 겁니다
gyae-hwae-kahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
계획하세요
gyae-hwae-kah-sae-yoh
Suggestion / Let's Polite (요)
계획해요
gyae-hwae-kae-yoh
Question Polite (요)
계획해요?
gyae-hwae-kae-yoh-?
Connective “and” — (고)
계획하고
gyae-hwae-kah-goh
Conditional “if” — (면)
계획하면
gyae-hwae-kah-myuhn
Noun form — (기)
계획함
gyae-hwae-kahm