GOING TO
Subject + to be + going to
They are going to visit their grandparents.
USE
Decisions, plans or intentions.
I am going to study English today.
FUTURE WILL / WON'T
They will arrive late.
They won't arrive late.
Will they arrive late?
USE
Predictions.
PRESENT CONTINUOUS FUTURE MEANING
USE
Plans already arranged.
EXERCISE 1
FIRST CONDITIONAL
IF + PRESENT SIMPLE + WILL
If you study hard, you will pass the exam.
(condition) (result)
USE
A possible future situation.