could strangle
Verbo regular: strangle - strangled- strangled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could strangle
you could strangle
he could strangle
we could strangle
you could strangle
they could strangle 	I could be strangling
you could be strangling
he could be strangling
we could be strangling
you could be strangling
they could be strangling	I could have strangled
you could have strangled
he could have strangled
we could have strangled
you could have strangled
they could have strangled	I could have been strangling
you could have been strangling
he could have been strangling
we could have been strangling
you could have been strangling
they could have been strangling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't strangle
you couldn't strangle
he couldn't strangle
we couldn't strangle
you couldn't strangle
they couldn't strangle 	I couldn't be strangling
you couldn't be strangling
he couldn't be strangling
we couldn't be strangling
you couldn't be strangling
they couldn't be strangling	I couldn't have strangled
you couldn't have strangled
he couldn't have strangled
we couldn't have strangled
you couldn't have strangled
they couldn't have strangled	I couldn't have been strangling
you couldn't have been strangling
he couldn't have been strangling
we couldn't have been strangling
you couldn't have been strangling
they couldn't have been strangling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I strangle?
could you strangle?
could he strangle?
could we strangle?
could you strangle?
could they strangle? 	could I be strangling?
could you be strangling?
could he be strangling?
could we be strangling?
could you be strangling?
could they be strangling? 	could I have strangled?
could you have strangled?
could he have strangled?
could we have strangled?
could you have strangled?
could they have strangled? 	could I have been strangling?
could you have been strangling?
could he have been strangling?
could we have been strangling?
could you have been strangling?
could they have been strangling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I strangle?
couldn't you strangle?
couldn't he strangle?
couldn't we strangle?
couldn't you strangle?
couldn't they strangle? 	couldn't I be strangling?
couldn't you be strangling?
couldn't he be strangling?
couldn't we be strangling?
couldn't you be strangling?
couldn't they be strangling? 	couldn't I have strangled?
couldn't you have strangled?
couldn't he have strangled?
couldn't we have strangled?
couldn't you have strangled?
couldn't they have strangled? 	couldn't I have been strangling?
couldn't you have been strangling?
couldn't he have been strangling?
couldn't we have been strangling?
couldn't you have been strangling?
couldn't they have been strangling?