Keys: by, by the time, before, after, just, when
Watch out: whether we use the past simple to the past perfect simple can change the meaning of a sentence
Irregular verbs
8. Past perfect continuous 3 forms with ex.
Use: actions continuing up to, or stopping just before a moment in the past.
Keys: for, since, before, all day
Watch out: the past simple emphasizes the result of an action. The past perfect continuous often emphasizes the action, and the time spent on the action, rather than the result.
9. Future A) Present continuous Use: arrangements
Watch out: Things we want to do in the future but have not arranged are called “intentions”. We don’t use the present continuous for intentions. We use be going to instead.
B) Will 3 forms with ex.
Use: facts about the future, predictions, offers and requests, promises, refusals, decisions made now.
Watch out: with offers which are questions, we use shall with I and we
P.S. the past form of will - would C) Be going to 3 forms with ex.
Use: intentions, predictions (often evidence we can see), facts about the future.
D) Present simple Use: fixed future events (timetables and schedules)
10. Future perfect simple 3 forms with ex.
Use: Completed situations before a certain time
Continuing situations up to a certain time
Keys: By the end of the week
11. Future perfect continuous 3 forms with ex.
Use: Continuing situations up to a certain time
Keys: For exactly 25 years
12. Future continuous 3 forms with ex.
Use: Situations in progress at a certain time in the future
Situations which will happen in the future in the normal course of events
Habits or repeated actions at a point in the future
Keys: This time next week
