Past perfect continues tense|| Negative sentence

There will learn past perfect continous tense I want to teaching past tense and past perfect continous tense .these tense are last tense of past tense. typesof past tense 1.past indefinite 2.past continouese 3.past perfect 4.past perfect continouese and sentences are four types i} affarmative ii}negative iii}interrogetive iv}interrogetive negative any doubt please comments me and If yuo wants learn maths , chemistry, english 9th to 12th local student come in my classes add. :- budhe balaji tekri road guna ##sanskar_coaching_classes_guna##