sentences:  Gurindji Kriol distinguishes between past (bin) and present tense (zero-marked for nouns, "-m" for pronouns) and marks future time using a potential marker (garra) which is also used to express obligation.Many of the auxiliaries also have reduced forms which attach to subject pronouns, such as "ai-rra" > "ai garra" 'I will'.Bound verbal morphology is also predominantly Kriol-derived.