The initial-modal verbs in Persian language

In every language, several modal verbs express time, aspect, and mode. Modal initial verbs show the initial aspect. The initial mode is a concept that indicates the beginning of an action. In the surviving texts of the Persian language of the Dari period, There are many modal verbs. This study tries to examine only the initial modal verbs among the types of modal verbs. The question of this research is that in the literary texts of ancient Persian language, in addition to certain verbs that have been introduced so far, what other verbs show the initial mold? In this research, four verbs "Falling" (افتادن), "Standing" ((ایستادن/ اندرایستادن, and "Rising" (برخاستن), based on the model of "Dimensions of Auxiliation" Suggested by Davari and Naghzgue Kohan (1396) have been investigated. Evidence from this research shows these four verbs might be considered auxiliaries.