could retaliate
Verbo regular: retaliate - retaliated- retaliated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could retaliate
you could retaliate
he could retaliate
we could retaliate
you could retaliate
they could retaliate 	I could be retaliating
you could be retaliating
he could be retaliating
we could be retaliating
you could be retaliating
they could be retaliating	I could have retaliated
you could have retaliated
he could have retaliated
we could have retaliated
you could have retaliated
they could have retaliated	I could have been retaliating
you could have been retaliating
he could have been retaliating
we could have been retaliating
you could have been retaliating
they could have been retaliating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't retaliate
you couldn't retaliate
he couldn't retaliate
we couldn't retaliate
you couldn't retaliate
they couldn't retaliate 	I couldn't be retaliating
you couldn't be retaliating
he couldn't be retaliating
we couldn't be retaliating
you couldn't be retaliating
they couldn't be retaliating	I couldn't have retaliated
you couldn't have retaliated
he couldn't have retaliated
we couldn't have retaliated
you couldn't have retaliated
they couldn't have retaliated	I couldn't have been retaliating
you couldn't have been retaliating
he couldn't have been retaliating
we couldn't have been retaliating
you couldn't have been retaliating
they couldn't have been retaliating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I retaliate?
could you retaliate?
could he retaliate?
could we retaliate?
could you retaliate?
could they retaliate? 	could I be retaliating?
could you be retaliating?
could he be retaliating?
could we be retaliating?
could you be retaliating?
could they be retaliating? 	could I have retaliated?
could you have retaliated?
could he have retaliated?
could we have retaliated?
could you have retaliated?
could they have retaliated? 	could I have been retaliating?
could you have been retaliating?
could he have been retaliating?
could we have been retaliating?
could you have been retaliating?
could they have been retaliating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I retaliate?
couldn't you retaliate?
couldn't he retaliate?
couldn't we retaliate?
couldn't you retaliate?
couldn't they retaliate? 	couldn't I be retaliating?
couldn't you be retaliating?
couldn't he be retaliating?
couldn't we be retaliating?
couldn't you be retaliating?
couldn't they be retaliating? 	couldn't I have retaliated?
couldn't you have retaliated?
couldn't he have retaliated?
couldn't we have retaliated?
couldn't you have retaliated?
couldn't they have retaliated? 	couldn't I have been retaliating?
couldn't you have been retaliating?
couldn't he have been retaliating?
couldn't we have been retaliating?
couldn't you have been retaliating?
couldn't they have been retaliating?