past perfect continuous tense .Use before ,for, after, since part 2

past perfect continuous tense .Use before ,for, after, since part 2 hello friends , I am going to teach you about past perfect continuous tense and past continuous tense between different these. structurer; sub+had been+ v1+ing+ for/since+ time before+ past simple tense example I had been reading for tow hours before he came ,. I was there I had been there. ##subE2BEducate