Actually the future tenses (really more like moods) are derived forms of the imperative.
The future is formed by changing the -o- of the infinitive/present ending to a -i-: "Stol", to be, am, are, is; "stil", will be.
Miwonša has essentially a past vs. non-past distinction, but due to the presence of aspect markers the future tense can be indicated by combining the present tense with the perfective aspect. Furthermore, there are some periphrastic futures.
