could harrow
Verbo regular: harrow - harrowed- harrowed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could harrow
you could harrow
he could harrow
we could harrow
you could harrow
they could harrow 	I could be harrowing
you could be harrowing
he could be harrowing
we could be harrowing
you could be harrowing
they could be harrowing	I could have harrowed
you could have harrowed
he could have harrowed
we could have harrowed
you could have harrowed
they could have harrowed	I could have been harrowing
you could have been harrowing
he could have been harrowing
we could have been harrowing
you could have been harrowing
they could have been harrowing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not harrow
you could not harrow
he could not harrow
we could not harrow
you could not harrow
they could not harrow 	I could not be harrowing
you could not be harrowing
he could not be harrowing
we could not be harrowing
you could not be harrowing
they could not be harrowing	I could not have harrowed
you could not have harrowed
he could not have harrowed
we could not have harrowed
you could not have harrowed
they could not have harrowed	I could not have been harrowing
you could not have been harrowing
he could not have been harrowing
we could not have been harrowing
you could not have been harrowing
they could not have been harrowing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I harrow?
could you harrow?
could he harrow?
could we harrow?
could you harrow?
could they harrow? 	could I be harrowing?
could you be harrowing?
could he be harrowing?
could we be harrowing?
could you be harrowing?
could they be harrowing? 	could I have harrowed?
could you have harrowed?
could he have harrowed?
could we have harrowed?
could you have harrowed?
could they have harrowed? 	could I have been harrowing?
could you have been harrowing?
could he have been harrowing?
could we have been harrowing?
could you have been harrowing?
could they have been harrowing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not harrow?
could you not harrow?
could he not harrow?
could we not harrow?
could you not harrow?
could they not harrow? 	could I not be harrowing?
could you not be harrowing?
could he not be harrowing?
could we not be harrowing?
could you not be harrowing?
could they not be harrowing? 	could I not have harrowed?
could you not have harrowed?
could he not have harrowed?
could we not have harrowed?
could you not have harrowed?
could they not have harrowed? 	could I not have been harrowing?
could you not have been harrowing?
could he not have been harrowing?
could we not have been harrowing?
could you not have been harrowing?
could they not have been harrowing?