CAN

It is used to express abilities that you do 

+  Positive

subject  + Can + Verb + Object 

Example

       I        can   drive   a   car 

_  Negative

Subject  +  Can + Not + Verb + Object 

                   Can't

Example

     I              can't            drive     a car

?  Questions

Can + Subject + Verb + Obeject + ?

Example

   Can     you        drive      a car  ?