The Future In The Past

Was/were-------> Going to.

*-*  I'm going to call you at 8pm. ---> Future plan.

    - I was going to call you, but I forgot! ---> Future in the past.
      @ I have a plan that I want to call you, but I forgot so I didn't call you.

    - You promised that you were going to help me study.
      @ You promised me that you want to help me study, but in fact you didn't.

   - She said they were going to win, but they didn't.
      @ She said that they might be win, but in fact they didn't.


I, It, He, She, Jony [Person name] ---> Was (Singular)

You, They, We, Jony and I ---> Were (Plural)