CEF Levels: Elementary / Pre-Intermediate
1 Positive, Part 1                    5 Interrogative, Part 1
2 Positive, Part 2                    6 Interrogative, Part 2
3 Negative, Part 1                    7 Short Answers, Part 1
4 Negative, Part 2                    8 Short Answers, Part 2

CEF Level: Intermediate
1 May v Might                         5 Possibility, Part 1
2 May Negatives                       6 Possibility, Part 2
3 May not v Can't, Part 1             7 Permission, Part 1
4 May not v Can't, Part 2             8 Permission, Part 2

CEF Levels: Intermediate / Upper-Intermediate
1 Perfect Aspect, Part 1              5 Wishes and Hopes, Part 1
2 Perfect Aspect, Part 2              6 Wishes and Hopes, Part 2
3 Progressive Aspect, Part 1          7 May ... but
4 Progressive Aspect, Part 2          8 May as well