could rule
Verbo regular: rule - ruled- ruled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could rule
you could rule
he could rule
we could rule
you could rule
they could rule 	I could be ruling
you could be ruling
he could be ruling
we could be ruling
you could be ruling
they could be ruling	I could have ruled
you could have ruled
he could have ruled
we could have ruled
you could have ruled
they could have ruled	I could have been ruling
you could have been ruling
he could have been ruling
we could have been ruling
you could have been ruling
they could have been ruling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not rule
you could not rule
he could not rule
we could not rule
you could not rule
they could not rule 	I could not be ruling
you could not be ruling
he could not be ruling
we could not be ruling
you could not be ruling
they could not be ruling	I could not have ruled
you could not have ruled
he could not have ruled
we could not have ruled
you could not have ruled
they could not have ruled	I could not have been ruling
you could not have been ruling
he could not have been ruling
we could not have been ruling
you could not have been ruling
they could not have been ruling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I rule?
could you rule?
could he rule?
could we rule?
could you rule?
could they rule? 	could I be ruling?
could you be ruling?
could he be ruling?
could we be ruling?
could you be ruling?
could they be ruling? 	could I have ruled?
could you have ruled?
could he have ruled?
could we have ruled?
could you have ruled?
could they have ruled? 	could I have been ruling?
could you have been ruling?
could he have been ruling?
could we have been ruling?
could you have been ruling?
could they have been ruling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not rule?
could you not rule?
could he not rule?
could we not rule?
could you not rule?
could they not rule? 	could I not be ruling?
could you not be ruling?
could he not be ruling?
could we not be ruling?
could you not be ruling?
could they not be ruling? 	could I not have ruled?
could you not have ruled?
could he not have ruled?
could we not have ruled?
could you not have ruled?
could they not have ruled? 	could I not have been ruling?
could you not have been ruling?
could he not have been ruling?
could we not have been ruling?
could you not have been ruling?
could they not have been ruling?