Luyện ngữ pháp - English Grammar in Use - Intermediate ((Unit 23: I will and I’m going to))
Future actions
Study the difference between will and (be) going to:
will ('ll): We use will to announce a new decision. The party is a new idea.
(be) going to: We use (be) going to when we have already decided to do something. Helen had already decided to invite lots of people before she spoke to Dan.
Future happenings and situations (predicting the future)
Do not use will in this type of situation.