Student or Learner
Question: I want to figure out tense, especially how to use past continuous and past perfect.
You will need to do some self-study on this.
One resource I think it great is the OWL at Purdue.
See this: https://owl.english.purdue.edu/owl/resource/601/1/
And... Welcome to the forums!
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.