Aladdin, thanks a lot for your help!

Bluebottle, Thanks for your help!, Because it's written in textbooks I guess)) I think foreigners just trying to sound correct and they following the rules of textbook or teachers. You suprised me, I thought you use almost all tenses.... But my question was: do you use Past Perfect Continuous and Future Perfect Continuous in your daily speech or you just ignore them or use rarely?

Do you mean 'I read about it on Monday' instead of 'I was reading about it Monday'? If so, then I think you are right. Native English speakers usually prefer the first and foreigners and English teachers usually prefer the second. They love ....was walking, were looking, have been seeing, ...inging... while the natives go more for the ...walked, looked, saw... I have no idea why. Maybe you could tell me?

I think that the" Past Perfect Continuous" is still common among native speakers because we use it to show that something started in the past and continued up until another time in the past but i'm not sure if native speakers still use the " Future Perfect Continuous" or not because i don't hear them using it in their daily speech. it's a good question by the way, hope you find the answer soon.