I can billow you can billow he can billow we can billow you can billow they can billow
Forma com V-ing
I can be billowing you can be billowing he can be billowing we can be billowing you can be billowing they can be billowing
Perfeito
I can have billowed you can have billowed he can have billowed we can have billowed you can have billowed they can have billowed
Perfeito com V-ing
I can have been billowing you can have been billowing he can have been billowing we can have been billowing you can have been billowing they can have been billowing
Negação
Forma simple
I can't billow you can't billow he can't billow we can't billow you can't billow they can't billow
Forma com V-ing
I can't be billowing you can't be billowing he can't be billowing we can't be billowing you can't be billowing they can't be billowing
Perfeito
I can't have billowed you can't have billowed he can't have billowed we can't have billowed you can't have billowed they can't have billowed
Perfeito com V-ing
I can't have been billowing you can't have been billowing he can't have been billowing we can't have been billowing you can't have been billowing they can't have been billowing
Forma interrogativa
Forma simple
can I billow? can you billow? can he billow? can we billow? can you billow? can they billow?
Forma com V-ing
can I be billowing? can you be billowing? can he be billowing? can we be billowing? can you be billowing? can they be billowing?
Perfeito
can I have billowed? can you have billowed? can he have billowed? can we have billowed? can you have billowed? can they have billowed?
Perfeito com V-ing
can I have been billowing? can you have been billowing? can he have been billowing? can we have been billowing? can you have been billowing? can they have been billowing?
Forma interro-Negação
Forma simple
can't I billow? can't you billow? can't he billow? can't we billow? can't you billow? can't they billow?
Forma com V-ing
can't I be billowing? can't you be billowing? can't he be billowing? can't we be billowing? can't you be billowing? can't they be billowing?
Perfeito
can't I have billowed? can't you have billowed? can't he have billowed? can't we have billowed? can't you have billowed? can't they have billowed?
Perfeito com V-ing
can't I have been billowing? can't you have been billowing? can't he have been billowing? can't we have been billowing? can't you have been billowing? can't they have been billowing?