可是
kě​shì HSK2

but

kě​shì but
  1. 可 kě conjunction
    but
    but; yet; however; abbreviated form of 可是 kě​shì
  2. 是 shì verb
    to be
    to be; to correspond to; connects a subject to its identification, characterization, or identity

kě​shì indeed
  1. 可 kě adverb
    actually
    (adverb) used to emphasize a contrast with expectations, often meaning actually, on the contrary, or after all
  2. 是 shì adverbverb
    indeed
    used for emphasis before a verb or adjective to confirm a quality or state, meaning "certainly" or "really"

kě​shì [question]
  1. 可 kě adverbparticle
    [question emphasis]
    used in rhetorical questions for emphasis or to express doubt
  2. 是 shì verb
    to be
    to be; to correspond to; connects a subject to its identification, characterization, or identity