PRESENT
Can
Positive (+) negative (- )
| 
 I  | 
 can  | 
 
  | 
 I  | 
 can  | 
 not  | 
 
 
 short form: CAN’T  | 
| 
 you  | 
 can  | 
 
  | 
 you  | 
 can  | 
 not  | 
|
| 
 he she it  | 
 can  | 
 
  | 
 he she it  | 
 can  | 
 not  | 
|
| 
 we  | 
 can  | 
 
  | 
 We  | 
 can  | 
 not  | 
|
| 
 you  | 
 can  | 
 
  | 
 you  | 
 can  | 
 not  | 
|
| 
 they  | 
 can  | 
 
  | 
 they  | 
 can  | 
 not  | 
Questions: Can I/you/he/we/ … ßà Can’t I/you/he/we/…
PAST
Can
Positive (+) negative (- )
| 
 I  | 
 could  | 
 
  | 
 I  | 
 could  | 
 not  | 
 
 
 short form: COULDN'T  | 
| 
 you  | 
 could  | 
 
  | 
 you  | 
 could  | 
 not  | 
|
| 
 he she it  | 
 could  | 
 
  | 
 he she it  | 
 could  | 
 not  | 
|
| 
 we  | 
 could  | 
 
  | 
 We  | 
 could  | 
 not  | 
|
| 
 you  | 
 could  | 
 
  | 
 you  | 
 could  | 
 not  | 
|
| 
 they  | 
 could  | 
 
  | 
 they  | 
 could  | 
 not  | 
Questions: Could I/you/he/we/ … ßà Couldn’t I/you/he/we/…