>why are simple tenses also called indefinite? is it a historical name? and the name "simple" a product of nowadays?
Yes, that's true: simple tenses are also called indefinite. The reason why they are called "indefinite" is because they do not inform us whether the action is finished or not.
I'm sorry but I don't know the origins of the word "simple" as in "simple tenses".
Hello,
>I'm very sorry for bothering you
You shouldn't be -- I'm here to help you! ;-)
>why are simple tenses also called indefinite? is it a historical name? and the name "simple" a product of nowadays?
Yes, that's true: simple tenses are also called indefinite. The reason why they are called "indefinite" is because they do not inform us whether the action is finished or not.
I'm sorry but I don't know the origins of the word "simple" as in "simple tenses".
http://www.englishtenseswithcartoons.com/page/simple_tenses.html
UPDATE: Maybe because that's the simplest of all aspects?