| Theory | |||
| Modal verbs: | Uses: | ||
| can, could: | possibility/ ability | exercise 1 | exercise 2  | 
| requests/ permission | exercise 1 | exercise 2  | |
| varied uses | exercise 1 | exercise 2 | |
| be able to (not a modal verb): | possibility/ ability | exercise 1 | exercise 2  | 
| may, might: | possibility/permission | exercise 1 | exercise 2  | 
| can, could, may, might: | requests | ||