| going to | ||
| to express plans, intentions, projects... | We're going to get married as soon as possible. What are you going to do now? |
= We intend to get married = What are your plans |
| predictions based on 'real evidence' (that is what you can see, hear, smell,etc.) |
Look at those black clouds: it's going to rain. | According to what I see, it seems sure to happen |
| will | ||
| to express 'instant' decisions | (phone starts ringing) - I'll answer! | No premeditation, no plan (no time for it) |
| promises and offers | We will visit you next week. |
will as 'want' (promises, promises...) |
| predictions based on 'personal feelings' | fortune-teller: - you will be rich. |
no firm plan; that's what we think, imagine, expect, hope, bet, etc. |
this is not exhaustive...