can - to be able to, to be allowed to
"can" yerine " be able to" yu kullanabiliriz.Sadece "can" in past formu " could" vardır.. " can" i diğer zamanlarda kullanabilmek için "be able to " veya " be allowed to" kullanılır.

Olumlu cümleler

Simple Present                   I can play football.                         I am able to play football.                     I am allowed to play football.

Simple Past                        I could play football.                       I was able to play football.                    I was allowed to play football.

will-future                         not possible                                   I will be able to play football.                I will be allowed to play football.

Diğer tenseler

Present Perfect:                                                                   I have been able to play football