Bin [PST] precedes the verb and
bai [FUT/IRR] precedes the subject or comes before the predicate marker.
Source: Dutton and Thomas 1985: 88
Source: Dutton and Thomas 1985: 88
Source: nd: Female, 17 from West Sepik
Source: Dutton and Thomas 1985: 52
Source: Dutton and Thomas 1985: 116