Verbseoul.
하다 verb (adj)
편리하다pyeonrihadaconvenient and useful

To say convenient and useful politely in the present tense, use 편리해요 (pyuhl-ree-hae-yoh). Below is the full conjugation of 편리하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
편리해
pyuhl-ree-hae
편리해요
pyuhl-ree-hae-yoh
편리합니다
pyuhl-ree-hahm-nee-dah
Past
편리했어
pyuhl-ree-hae-ssuh
편리했어요
pyuhl-ree-hae-ssuh-yoh
편리했습니다
pyuhl-ree-hae-sseum-nee-dah
Future
편리할 거야
pyuhl-ree-hahl- -guh-yah
편리할 거예요
pyuhl-ree-hahl- -guh-yae-yoh
편리할 겁니다
pyuhl-ree-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
편리하세요
pyuhl-ree-hah-sae-yoh
Suggestion / Let's Polite (요)
편리해요
pyuhl-ree-hae-yoh
Question Polite (요)
편리해요?
pyuhl-ree-hae-yoh-?
Connective “and” — (고)
편리하고
pyuhl-ree-hah-goh
Conditional “if” — (면)
편리하면
pyuhl-ree-hah-myuhn
Noun form — (기)
편리함
pyuhl-ree-hahm