 This form, known as the jussive/imperative, is tenseless; it is used to express the imperative mood in the second person as well as notions such as 'let him DO', 'that he DO' in the first and third persons.In Ethiopian Semitic, the affirmative imperative drops the prefix, but the negative imperative maintains it.For example, in Tigrinya ንስበር "nǝ-sbär" 'let's break', ስበራ "sǝbär-a" 'break!