Rinoceronte, English tenses were NOT borrowed from Latin.
This statement of yours is not true. This is not a coincidence:
Latin:
habeo factum
English:
(I) have done
In both cases the auxuliary verb "to have" in present tense is combined with the passive participle of the lexical verb. The usage of this tense coincides in most cases too. This is not a coincidence.
It was not only you, who borrowed this tense. The Roman languages did that as well. But they understood it correctly and preserved its essence. You misunderstood it, misnamed it, mangled its essence, and now claim it's your own invention.
It is virtually impossible to describe the grammar of one language completely accurately in terms devised for another language. To talk about English tenses in Latin terms is almost as silly as - well, talking about English tenses in terms of Slavonic perfective and imperfective aspects.
There are no terms for separate languages. There are global grammar terms, common for most languages. Since most languages have such words as "one" and "many", most languages have the category of number. Since most languages have such words as "man" and "woman", most languages have the category of gender. Since most languages have such words as "yesterday", "today", "tomorrow", most languages have the category of time. Since most languages have such words as "above" and "under", or "strong" and "weak", most languages have the category of voice. Since most languages have such words as "process" and "result", most languages have the category of aspect.
It's not silly at all to talk about English tenses in terms of Slavonic perfect(ive) and imperfect(ive) aspects. It's the least silly thing on earth. Actually, attributing the aspects exclusively to Slavonic grammars, - that is what seems to be silly. Roman languages are based on aspects almost as solidly as Slavonic ones. So are Turkish, Arab, Georgian, Armenian, Hebrew, Indian languages. Indian and Georgian are the most remarkable cases, Ancient Indian being a proto-language for the whole Indoeuropean family, and Georgian being a pre-Indoeuropean language. Algonquin Indians also have the aspect system in their grammar. So, it's not about Slavs. It's about the rest of the world.
You keep ignoring two questions of mine.