AFTER READING (pp.39-41)
KEY
a- “Can” expresses possibility; “Can” can also express also ability or permission. e.g., ability: I can ride a bicycle.
permission: Can I go out?
b- The regular past form of can is could. Its irregular form is was/were able to. We can replace managed to by was/were able to , which indicates a successful completion of an action.
c- The future form of “can” is: “will be able to”.
Refer your students to the Grammar reference N° 8, page 197 to check their answers and to consolidate further the use of can/could and their irregular forms.