We form the will-future with the auxiliary will and the infinitive of the verb.
We use the the same form of the verb every time regardless the subject.
We use the will-future:
1) Future actions happen without the speaker's intention (birthday, weather, etc.)
The sun will shine tomorrow.
Peter will be 15 next Tuesday.
2) Predictions, assumptions (I think, I hope, I'm sure, I'm afraid)
I think Sue will arrive in Paris at 6 pm.
3) Spontaneous actions (not planned)
Hang on! I'll have a word with you.
He will play football.
NOTE: short/contracted form in the will-future:
He'll play football.
He will not play football.
NOTE: short/contracted forms in the will-future:
He won't play football. or
He'll not play football.
Will he play football?
I will write down your name and address.
Tom will have breakfast early tomorrow.
I don't know when Tom will leave Japan.
I doubt that Tom will get here on time.
Suzy hopes that Tom will ask her out.
I expect that Tom will pass the exam.
He will accept any money he can get.
The results will be back in a week.
That will save me a lot of trouble.
She will come even if she is tired.
I think he will be glad to see you.
I hope that you will get well soon.
I have an idea she will come today.
I don't know what plan he will try.
I am doubtful whether he will come.
I am afraid he will make a mistake.
He will get nowhere with his plans.
He will be contacting you directly.