There are two future tenses in English: the simple future and the 'going to' future. The simple future uses will/won't + infinitive and is used to talk about wishes, predictions, and decisions made at the moment. The 'going to' future uses am/is/are going to + infinitive and is used to talk about predictions based on present evidence and planned future arrangements. Both tenses can be used with time expressions like next year or tomorrow.

1. There are two future tenses in English.
will
won't + V(infinitive)
I think I will visit Paris one day.
Simple
(It's a wish)
Future
I'm going to visit Paris in my 'going
honeymoon. to'
It is for sure.
Future
am
is + going to + V(infinitive)
are

2. a) Structure
Affirmative: Subject will V(infinitive) Complements
Negative: Subject won't V(infinitive) Complements
Interrogative: Will Subject V(infinitive) Complements
b) Time next year in ten days soon
expressions:
after finishing school
After finishing school I will study an A-level in Arts.

3. c) Uses of simple future:
1. To talk about wishes and predictions.
When I get older I'll be a famous scientist.
Astronauts won't reach Mars soon.
2. To take decisions at the moment of speaking.
- Sam has got a cold.
- I'll take him to the doctor.
- What a mess!
- Tom! You will tidy your room just now.

4. a) Structure
am
Affirmative: Subject is going to V(infinitive) Complements
are
am not
Negative: Subject isn't going to V(infinitive) Complements
aren't
Am
Interrogative: Is Subject going to V(infinitive) Complements
Are
b) Time next year in ten days soon
expressions:
Tom is going to have a baby next month.

5. c) Uses of 'going to' future:
1. To talk about predictions based on what you can see.
Watch out! You are going to fall down.
2. To talk about future arrangements.
- I can't see you on Monday. I'm going to take an English exam.
3. To talk about an action that is taking place in a few
moments.
- Where are you going?
- I' ll be back in a moment. I'm going to buy the newspaper.