I can ask you can ask she can ask we can ask you can ask they can ask
Forma com V-ing
I can be asking you can be asking she can be asking we can be asking you can be asking they can be asking
Perfeito
I can have asked you can have asked she can have asked we can have asked you can have asked they can have asked
Perfeito com V-ing
I can have been asking you can have been asking she can have been asking we can have been asking you can have been asking they can have been asking
Negação
Forma simple
I can't ask you can't ask she can't ask we can't ask you can't ask they can't ask
Forma com V-ing
I can't be asking you can't be asking she can't be asking we can't be asking you can't be asking they can't be asking
Perfeito
I can't have asked you can't have asked she can't have asked we can't have asked you can't have asked they can't have asked
Perfeito com V-ing
I can't have been asking you can't have been asking she can't have been asking we can't have been asking you can't have been asking they can't have been asking
Forma interrogativa
Forma simple
can I ask? can you ask? can she ask? can we ask? can you ask? can they ask?
Forma com V-ing
can I be asking? can you be asking? can she be asking? can we be asking? can you be asking? can they be asking?
Perfeito
can I have asked? can you have asked? can she have asked? can we have asked? can you have asked? can they have asked?
Perfeito com V-ing
can I have been asking? can you have been asking? can she have been asking? can we have been asking? can you have been asking? can they have been asking?
Forma interro-Negação
Forma simple
can't I ask? can't you ask? can't she ask? can't we ask? can't you ask? can't they ask?
Forma com V-ing
can't I be asking? can't you be asking? can't she be asking? can't we be asking? can't you be asking? can't they be asking?
Perfeito
can't I have asked? can't you have asked? can't she have asked? can't we have asked? can't you have asked? can't they have asked?
Perfeito com V-ing
can't I have been asking? can't you have been asking? can't she have been asking? can't we have been asking? can't you have been asking? can't they have been asking?