Future Tenses

For spontaneous decisions use

Be (un) likely to do sth expresses

Modals May, Might, Could express

For plans and intentions use

By the end of the day I _____ 3 letters.

After such linkers as when, as soon as, after, until, by the time use

For timetables and scheduled events use

For fixed arrangements use

For predictions based on evidence use

For hopes, expectations, predictions use

To talk about the immediate future use

This time next month we _____ our exams.