We use will for making future predictions, plans, and statements. I think/I don't think is used to express thinking or opinions rather than promises or the present. Will/won't is used for making decisions, offering promises, and asking questions rather than just questions. Be going to + infinitive is used to talk about future plans or intentions rather than the past or present, and specifically to make predictions when something is known to be going to happen.

1. MARIA & ARNAU

2. We use will for future predictions __
a) Imagine about the future.
b) Say something.
c) For plans.
We use I think/I don’t think _______
a) To make a promise.
b) When we are thinking.
c) To do the present.
We use will/won’t for ____________
a) To make questions.
b)
c) Making decisions, offering and
promising.

3. We use be going to + infinitive to ________
a) Talk about the past.
b) Talk about future plans or intentions.
c) Talk about the present.
We use be going to + infinitive to ________
a) Dabadabaduuuuuuuu.
b) Make prediction when we know
something is going to happen.
c) Use with no difference in meaning.
I going to go to London.