Student or Learner
Ragnar: Do you think you are a good man?
King of Wessex: Yes, I think so.
Taken from 'Vikings.'
I'd like to ask if we can omit 'so' in the answer.
No, you can't omit it.
Yes, I do.
Yes, I think so.
Yes, I think I am.
Not: Yes, I think.
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.