| CAN |
| Non-negative: can Uncontracted negative: cannot, can not Contracted negative: can`t |
| � CAN is used to express ability, it means "to be able to do something, to be capable of doing something, to know how to do something". |
| Eg |
| She can sing very well (She is able to sing very well) |
| They can play football (They are capable of playing football ) |
| Eg |
| Eg |
| � CAN is also used to express permission, it means "to be allowed to do something, to be permitted to do something". Can is less formal than may in this sense. |
| Can I smoke? (Am I allowed to smoke?) |
| � CAN has a third use, which expresses theoretical possibility, it means that it is possible that something happens. |
| The road can be blocked (It is possible to block the road) |
 |
 |
 |
 |
 |