ABSTRACT
Through using a lot of examples in complete sentences to illustrate usage and function, this chapter examines the formation of tenses, aspects, moods and voices. Persian has only a single tense as the equivalent of the English simple present and present progressive tenses. Formation of the future tense is simple and regular for all the verbs, because it uses Stem II. The simple past tense is formed by simply adding the conjugational suffixes to the past stem. The past perfect tense is like the present perfect tense; it only uses the past tense of the verb 'to be' as auxiliary instead of its present tense. Imperative, which is used for commands and requests, has a singular and a plural form in Persian. Persian is not very fond of passive and tries to avoid it in different ways, such as: Using 3Pl without mentioning the subject and switching a transitive verb with an intransitive one.
