I can ring you can ring he can ring we can ring you can ring they can ring
Forma com V-ing
I can be ringing you can be ringing he can be ringing we can be ringing you can be ringing they can be ringing
Perfeito
I can have rung you can have rung he can have rung we can have rung you can have rung they can have rung
Perfeito com V-ing
I can have been ringing you can have been ringing he can have been ringing we can have been ringing you can have been ringing they can have been ringing
Negação
Forma simple
I can't ring you can't ring he can't ring we can't ring you can't ring they can't ring
Forma com V-ing
I can't be ringing you can't be ringing he can't be ringing we can't be ringing you can't be ringing they can't be ringing
Perfeito
I can't have rung you can't have rung he can't have rung we can't have rung you can't have rung they can't have rung
Perfeito com V-ing
I can't have been ringing you can't have been ringing he can't have been ringing we can't have been ringing you can't have been ringing they can't have been ringing
Forma interrogativa
Forma simple
can I ring? can you ring? can he ring? can we ring? can you ring? can they ring?
Forma com V-ing
can I be ringing? can you be ringing? can he be ringing? can we be ringing? can you be ringing? can they be ringing?
Perfeito
can I have rung? can you have rung? can he have rung? can we have rung? can you have rung? can they have rung?
Perfeito com V-ing
can I have been ringing? can you have been ringing? can he have been ringing? can we have been ringing? can you have been ringing? can they have been ringing?
Forma interro-Negação
Forma simple
can't I ring? can't you ring? can't he ring? can't we ring? can't you ring? can't they ring?
Forma com V-ing
can't I be ringing? can't you be ringing? can't he be ringing? can't we be ringing? can't you be ringing? can't they be ringing?
Perfeito
can't I have rung? can't you have rung? can't he have rung? can't we have rung? can't you have rung? can't they have rung?
Perfeito com V-ing
can't I have been ringing? can't you have been ringing? can't he have been ringing? can't we have been ringing? can't you have been ringing? can't they have been ringing?