“The past is always tense, the future perfect.”
― Zadie Smith
We use WILL:
- to make decisions that are made at the time of speaking
Ouch, I cut my finger. I will go fetch a bandaid now.
- to state a fact about the future
Jane will be 45 next year, we need to buy a nice present for her.
- to make a promise
I will start dieting from next year onwards.
- to make a prediction
The next decade will be tense in terms of world politics.
- with words like I think, I guess, I hope, probably, possibly
I think, I will fall in love with this festival.
We use BE GOING TO:
- a future event that has been planned before the time of speaking
We are going on holiday to Spain next year.
- to make a future prediction based on facts / evidence
The sky is so dark! It is going to rain soon.