Three tenses (present, past; future tense is indicated by the prefix sa- or the particle sawfa and the present tense). Two voices (active, passive) Two genders (masculine, feminine) Three persons (first, second, third) Three numbers (singular, dual, plural) Six moods in the non-past only (indicative, subjunctive, jussive, imperative, and short and long energetics) Nineteen forms, the derivational systems indicating derivative concepts such as intensive, causative, reciprocal, reflexive, frequentative etc. For each form, there is also an active and a passive participle (both adjectives, declined through the full paradigm of gender, number, case and state) and a verbal noun (declined for case; also, when lexicalized, may be declined for number).