English language has several forms for expressing ideas about the future.I will talk here about the simple future and the difference between using will and going to .
1- Will + infinitive without to
We use will:
A- To express predictions based on opinions or beliefs:
-This movie will win several awards.
-He will be a famous star .
B- To express a sudden decision made at the moment of speaking:
- I will translate the email,so you can read it.
- I think I will buy a new dictionary.
C- To express fixed intentions or promises:
-I will always be your friend.
- I will call you when I arrive.
D- To make a request or an offer:
- Will you hold on a minute?
- Will you make dinner?
2- Be (is /are) +going to + infinitive without to :
We use this form to:
A- Make a prediction about a future event because of something we observe now:
-Look at the sky! It's going to rain.
-He is going to meet her this evening.
B-Express an intention to do something:
- I'm going to buy a new mobile phone.
-They are going to spend their vacation in Italy.
We use the present continuous to talk about future events that we have fixed or arranged:
- We are staying here until the end of the month.
We use the simple present to talk about future events or timetables which can't be changed:
- The meeting begins at 9 tomorrow morning.
- The exam starts next Monday .
Questions and Negatives :
- The weather will not ( won't)be snowy tomorrow.
- When will the plane arrive?
-She is not going to invite him to the party.
-Who are you going to invite to the party?
No Future in Time Clauses :The simple future can not be used in clauses begins with time expressions such as: when , while , before ,after,as soon as ...instead of simple future ,we use simple present :
- When you will arrive tonight ,we will go out for dinner.
- He will send a message as soon as he will reads mine .
Give three sentences using the simple future tense using ( will or going to)
Rewrite these two sentences in the negative forms "not":
1- Those trees will be cut down next week.
2-I'm going to leave for England on Sunday.
Thank you for reading and participating in my discussions ,I have just focused on some tenses of the verbs in a clear way as much as I can . I hope you can find them useful and helpful .