could harp
Verbo regular: harp - harped- harped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could harp
you could harp
she could harp
we could harp
you could harp
they could harp 	I could be harping
you could be harping
she could be harping
we could be harping
you could be harping
they could be harping	I could have harped
you could have harped
she could have harped
we could have harped
you could have harped
they could have harped	I could have been harping
you could have been harping
she could have been harping
we could have been harping
you could have been harping
they could have been harping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not harp
you could not harp
she could not harp
we could not harp
you could not harp
they could not harp 	I could not be harping
you could not be harping
she could not be harping
we could not be harping
you could not be harping
they could not be harping	I could not have harped
you could not have harped
she could not have harped
we could not have harped
you could not have harped
they could not have harped	I could not have been harping
you could not have been harping
she could not have been harping
we could not have been harping
you could not have been harping
they could not have been harping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I harp?
could you harp?
could she harp?
could we harp?
could you harp?
could they harp? 	could I be harping?
could you be harping?
could she be harping?
could we be harping?
could you be harping?
could they be harping? 	could I have harped?
could you have harped?
could she have harped?
could we have harped?
could you have harped?
could they have harped? 	could I have been harping?
could you have been harping?
could she have been harping?
could we have been harping?
could you have been harping?
could they have been harping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not harp?
could you not harp?
could she not harp?
could we not harp?
could you not harp?
could they not harp? 	could I not be harping?
could you not be harping?
could she not be harping?
could we not be harping?
could you not be harping?
could they not be harping? 	could I not have harped?
could you not have harped?
could she not have harped?
could we not have harped?
could you not have harped?
could they not have harped? 	could I not have been harping?
could you not have been harping?
could she not have been harping?
could we not have been harping?
could you not have been harping?
could they not have been harping?