could tour
Verbo regular: tour - toured- toured

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tour
you could tour
he could tour
we could tour
you could tour
they could tour 	I could be touring
you could be touring
he could be touring
we could be touring
you could be touring
they could be touring	I could have toured
you could have toured
he could have toured
we could have toured
you could have toured
they could have toured	I could have been touring
you could have been touring
he could have been touring
we could have been touring
you could have been touring
they could have been touring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not tour
you could not tour
he could not tour
we could not tour
you could not tour
they could not tour 	I could not be touring
you could not be touring
he could not be touring
we could not be touring
you could not be touring
they could not be touring	I could not have toured
you could not have toured
he could not have toured
we could not have toured
you could not have toured
they could not have toured	I could not have been touring
you could not have been touring
he could not have been touring
we could not have been touring
you could not have been touring
they could not have been touring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tour?
could you tour?
could he tour?
could we tour?
could you tour?
could they tour? 	could I be touring?
could you be touring?
could he be touring?
could we be touring?
could you be touring?
could they be touring? 	could I have toured?
could you have toured?
could he have toured?
could we have toured?
could you have toured?
could they have toured? 	could I have been touring?
could you have been touring?
could he have been touring?
could we have been touring?
could you have been touring?
could they have been touring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not tour?
could you not tour?
could he not tour?
could we not tour?
could you not tour?
could they not tour? 	could I not be touring?
could you not be touring?
could he not be touring?
could we not be touring?
could you not be touring?
could they not be touring? 	could I not have toured?
could you not have toured?
could he not have toured?
could we not have toured?
could you not have toured?
could they not have toured? 	could I not have been touring?
could you not have been touring?
could he not have been touring?
could we not have been touring?
could you not have been touring?
could they not have been touring?