I can busk you can busk he can busk we can busk you can busk they can busk
Forma com V-ing
I can be busking you can be busking he can be busking we can be busking you can be busking they can be busking
Perfeito
I can have busked you can have busked he can have busked we can have busked you can have busked they can have busked
Perfeito com V-ing
I can have been busking you can have been busking he can have been busking we can have been busking you can have been busking they can have been busking
Negação
Forma simple
I can't busk you can't busk he can't busk we can't busk you can't busk they can't busk
Forma com V-ing
I can't be busking you can't be busking he can't be busking we can't be busking you can't be busking they can't be busking
Perfeito
I can't have busked you can't have busked he can't have busked we can't have busked you can't have busked they can't have busked
Perfeito com V-ing
I can't have been busking you can't have been busking he can't have been busking we can't have been busking you can't have been busking they can't have been busking
Forma interrogativa
Forma simple
can I busk? can you busk? can he busk? can we busk? can you busk? can they busk?
Forma com V-ing
can I be busking? can you be busking? can he be busking? can we be busking? can you be busking? can they be busking?
Perfeito
can I have busked? can you have busked? can he have busked? can we have busked? can you have busked? can they have busked?
Perfeito com V-ing
can I have been busking? can you have been busking? can he have been busking? can we have been busking? can you have been busking? can they have been busking?
Forma interro-Negação
Forma simple
can't I busk? can't you busk? can't he busk? can't we busk? can't you busk? can't they busk?
Forma com V-ing
can't I be busking? can't you be busking? can't he be busking? can't we be busking? can't you be busking? can't they be busking?
Perfeito
can't I have busked? can't you have busked? can't he have busked? can't we have busked? can't you have busked? can't they have busked?
Perfeito com V-ing
can't I have been busking? can't you have been busking? can't he have been busking? can't we have been busking? can't you have been busking? can't they have been busking?