could busk
Verbo regular: busk - busked- busked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could busk
you could busk
he could busk
we could busk
you could busk
they could busk 	I could be busking
you could be busking
he could be busking
we could be busking
you could be busking
they could be busking	I could have busked
you could have busked
he could have busked
we could have busked
you could have busked
they could have busked	I could have been busking
you could have been busking
he could have been busking
we could have been busking
you could have been busking
they could have been busking	

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

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I busk?
could you busk?
could he busk?
could we busk?
could you busk?
could they busk? 	could I be busking?
could you be busking?
could he be busking?
could we be busking?
could you be busking?
could they be busking? 	could I have busked?
could you have busked?
could he have busked?
could we have busked?
could you have busked?
could they have busked? 	could I have been busking?
could you have been busking?
could he have been busking?
could we have been busking?
could you have been busking?
could they have been busking? 	

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