是不是
shì​bu​shì HSK1

is it or not

  1. 是 shì verb
    to be
    to be; to correspond to; connects a subject to its identification, characterization, or identity
  2. 不 bu particle
    [potential]
    Used between a verb and its result to show that the action cannot achieve that result; used as the negative form of the 得 de potential construction
  3. 是 shì verb
    to be
    to be; to correspond to; connects a subject to its identification, characterization, or identity