Two habitual markers coexist in all Kriol varieties, oldei~orlas~olwei~ala (which can be combined with the past tense marker) and yusdu~yustu (which always has past reference). They seem to be restricted to marking habitual function.
Source: Sandefur & Sandefur 1982: 65
Source: Sandefur & Sandefur 1982: 61
Source: Sandefur 1979: 133
Source: Angelo et al. 1998a