FUTURE TENSES

FUTURE CONTINUOUS
We use this tense to talk about actions that will be in progress at a certain time in the future.
STRUCTURE:
Subject+ will be+ verb -ing
Example: We'll be using driveless cars in 2020
FUTURE PERFECT
We use this tense to talk about actions that will be finished at a certain time in the future.
STRUCTURE:
Subject+ will have + past participle
WILL
PREDICTIONS BASED ON WHAT WE BELIEVE
Example: We will win the match
PROMISES
Example: I won't tell anyone
SPONTANEOUS DECISIONS
Example: I'll open the door.
BE GOING TO
PREDICTIONS BASED ON EXTERNAL EVIDENCE
Example: Look at those black clouds, it's going to rain
FUTURE INTENTION
Example: I'm going to be a teacher
PRESENT CONTINUOUS
FIXED PLANS
Example: We are having lunch with my grandmother
PRESENT SIMPLE
TIMETABLES
Example: The train leaves at 9 o'clock
BE ABOUT TO 
-To talk about things which are going to happend very soon
Example: I'm about to leave, can I phone you later?
-In the past, it can refer to things that were going to happend buy didn't
Example: I was about to complain but he came over and apologized
-NO TIME EXPRESSION
BE DUE TO 
-To talk about things that are expected or planned to happen at a certain time.
Example: The train leaves at 21:30
BE LIKELY TO
-To talk about how probable things are
Example: Men are more likely to spend money on food than women are