I want all tenses with clear explanation

For tenses don't merely go with 12 tenses For better understanding tenses read newspapers, read children books it's the only root where your keenly understand the movement of all 12 tenses, read articles what you like. and mainly have glimpse on "parts of Srikanth speech"

Better to watch in "YouTube" it gives more information than someone sending a msg of tenses and importantly keep focus on "parts of speech"