This is part 1 of a repetitional crash course on tenses aimed at level B2 - C1 students and comprised of 4 modules with 90 minutes each. It is still under development, so forgive the teacher if he has to improvise a little at times. :-)
1. Print out exercise sheet 1. Watch the following video until 5:34 in order to help you fill in the gaps.
2. As you read and complete exercises according to your teacher's instructions, use sheet 2 to summarise what you have learned.
3. Now let's see if you've really got the hang of it:
4. Talk about things you used to / did not use to do and have changed now.