Student or Learner
What is the right sentence for "How long ago?"
I know that makes sense in spoken language.
But, here are some conversations that make me confused :
1. Q: How long is it ago?
__A : It is 3 days ago.
2. Q: How long was it ago ?
__A: It was 3 days ago.
3. Q: How long has it been ago ?
__A : It has been days ago.
Are all these things are grammatically correct, in same meaning ?
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.