1. perfective - Noun
2. perfective - Adjective
Tending or conducing to make perfect, or to bring to perfection; -- usually followed by of.
Source: Webster's dictionaryAdditionally, the perfective form of pherno (used for the subjunctive voice and also for the future tense) is also phero. Source: Internet
Although languages that are described as having imperfective and perfective aspects agree in most cases in their use of these aspects, they may not agree in every situation. Source: Internet
Explicit consideration of aspect as a category first arose out of study of the Slavic languages ; here verbs often occur in the language in pairs, with two related verbs being used respectively for imperfective and perfective meanings. Source: Internet
Although the verbs' meaning is similar, in perfective verbs the action is completed and in imperfective verbs it is ongoing. Source: Internet
Common aspectual distinctions The most fundamental aspectual distinction, represented in many languages, is between perfective aspect and imperfective aspect. Source: Internet
Consequently each language contains many pairs of verbs, corresponding to each other in meaning, except that one expresses perfective aspect and the other imperfective. Source: Internet