Review: Future Times:

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The Future Tenses

The future can be indicated in several different ways in English. It is
often created with the use of auxiliaries: "She will be a student.",
"She is going to drive a new car."

English can even create the future by using the simple present (used for
timetables,programs etc.), "The train arrives at 10pm" or the present
progressive (used for future plans), "He is collecting his mother from the
station tonight."

Simple Future (uses will or shall or going to + base form)

Simple Future (Some uncertainty)

Decide to do something at the time of speaking

I think I'll do my English homework tonight.

Simple Future (Certain)

Have already decided or arranged to do something

I am going to study English next Saturday.

Future Progressive/Continous (uses will be, shall be or going to be +-ing
form)

Future Progressive (Some uncertainty)

The English lesson should begin at 7.30 and end at 9.15, so the person should be studying at 7.30 (but the lesson might start late).

I will be starting my English lesson at 7.30 pm.

Future Progressive (Certain)

The English lesson begins at 7.30 and ends at 9.15, so he's certain to be studying when his friend arrives at 8.00

I am going to be studying English when my friends arrive at 9.00 pm.

Future Perfect Simple (uses will have or shall have + past
participle)

Future Perfect Simple

Used to say something will already be complete by a time.

I will have already done my English homework by the time I eat dinner on Saturday.

Future Perfect Progressive/Continuous (uses will have been or shall have
been + -ing form)

Future Perfect Progressive

Used to say how long something will have been happening in the future by a certain time.

I will have been studying English for 30 minutes when my friends arrive.