-을까

• -ㄹ까 (-lkka) — after vowel or ㄹ (l)-final stems

From Middle Korean -으ᇙ가〮/ᄋᆞᇙ가〮 (Yale: -olq-ká/ulq-ká), equivalent to -으ᇙ/ᄋᆞᇙ (Yale: -olq/ulq, irrealis adnominal suffix) + -가〮 (Yale: -ká, noun-like particle for polar questions). The wh-word question equivalent is -을꼬 (-eulkko), not common in Standard Korean.

• (SK Standard/Seoul) IPA^(key): [ɯɭk͈a̠]
• Phonetic hangul: [을까]

-을까 • (-eulkka)

1. In the intimate speech level, or with -요 (-yo) in the polite speech level, an interrogative suffix. Has a nuance of greater doubt or uncertainty.

   음악이나 들을까요? ― eumag-ina deur-eulkka-yo? ― Should we listen to some music?

   언제 만날까? ― eonje mannal kka ? ― When should we meet up?

   우리가 할 수 있을까? ― uri-ga hal su isseulkka? ― Can we do it? / Do you think we can do it?

   커피나 마실까? ― keopi-na masil kka ? ― Should [I, we] drink coffee?

• 을까 (-eulkka) causes stem-final ㄹ (l) to drop out.
• Adding 하다 (hada) adds the meaning of intention, e.g.

  그 영화를 볼까 해요. ― Geu yeonghwa-reul bolkka haeyo. ― I intend to watch that movie.

• In Northern Standard Language, 문화어, this is spelled -을/ㄹ가.