The difference between Iterative aspect and Perfective aspect

When used as nouns, iterative aspect means a subclass of imperfective verbs that denote a continuously repeated action. an example in english would be the iterative verb , as opposed to the noniterative , whereas perfective aspect means the perfective aspect is a feature of the verb which denotes viewing the event the verb describes as a completed whole, rather than from within the event as it unfolds. for example, "she sat down" as opposed to "she was sitting down". since the focus is on the completion of what is expressed by the verb, this aspect is generally associated with the past and future tenses. this term is often used interchangeably with aorist aspect. this is not to be confused with the perfect tense.

check bellow for the other definitions of Iterative aspect and Perfective aspect