could restrain
Verbo regular: restrain - restrained- restrained

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could restrain
you could restrain
he could restrain
we could restrain
you could restrain
they could restrain 	I could be restraining
you could be restraining
he could be restraining
we could be restraining
you could be restraining
they could be restraining	I could have restrained
you could have restrained
he could have restrained
we could have restrained
you could have restrained
they could have restrained	I could have been restraining
you could have been restraining
he could have been restraining
we could have been restraining
you could have been restraining
they could have been restraining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't restrain
you couldn't restrain
he couldn't restrain
we couldn't restrain
you couldn't restrain
they couldn't restrain 	I couldn't be restraining
you couldn't be restraining
he couldn't be restraining
we couldn't be restraining
you couldn't be restraining
they couldn't be restraining	I couldn't have restrained
you couldn't have restrained
he couldn't have restrained
we couldn't have restrained
you couldn't have restrained
they couldn't have restrained	I couldn't have been restraining
you couldn't have been restraining
he couldn't have been restraining
we couldn't have been restraining
you couldn't have been restraining
they couldn't have been restraining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I restrain?
could you restrain?
could he restrain?
could we restrain?
could you restrain?
could they restrain? 	could I be restraining?
could you be restraining?
could he be restraining?
could we be restraining?
could you be restraining?
could they be restraining? 	could I have restrained?
could you have restrained?
could he have restrained?
could we have restrained?
could you have restrained?
could they have restrained? 	could I have been restraining?
could you have been restraining?
could he have been restraining?
could we have been restraining?
could you have been restraining?
could they have been restraining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I restrain?
couldn't you restrain?
couldn't he restrain?
couldn't we restrain?
couldn't you restrain?
couldn't they restrain? 	couldn't I be restraining?
couldn't you be restraining?
couldn't he be restraining?
couldn't we be restraining?
couldn't you be restraining?
couldn't they be restraining? 	couldn't I have restrained?
couldn't you have restrained?
couldn't he have restrained?
couldn't we have restrained?
couldn't you have restrained?
couldn't they have restrained? 	couldn't I have been restraining?
couldn't you have been restraining?
couldn't he have been restraining?
couldn't we have been restraining?
couldn't you have been restraining?
couldn't they have been restraining?