Student or Learner
What is Tense? Let me know details easily.
Welcome to the forum, Pilanto Rokho.
You'll find that people are generally happier to respond to questions if they are presented as a polite request rather than a commnd.
There is no easy answer to your question, as you will see here. If you have specific questions about English tenses, ask them in this forum; we will do our best to help.