莫非
mò​fēi HSK7

could it be that

mò​fēi could it be that
  1. 莫 mò
    perhaps
    Used in patterns like 莫非 mò​fēi to express a guess, doubt, or a rhetorical question
  2. 非 fēi verb
    not be
    to not be; to not belong to; equivalent to 是 shì in its negative form

mò​fēi none is not
  1. 莫 mò adjective
    none
    (literary) nothing; no one; there is none who
  2. 非 fēi verb
    not be
    to not be; to not belong to; equivalent to 是 shì in its negative form