“…In Type 2, ‘unless Q , P’ , the apodosis connective is fǒuzé ‘or; otherwise’, or one of its near-synonyms. Both types are illustrated in (31a, b).
Chúfēi occurs in more patterns than Table 4 suggests; for example, the chúfēi -marked protasis may be post-posed (Wang et al
2014). Despite its incompleteness, Table 4 captures the primary focuses of the literature on chúfēi : the meanings of ‘only if’ and ‘unless’ and its protasis-marking function.…”