could massacre
Verbo regular: massacre - massacred- massacred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could massacre
you could massacre
he could massacre
we could massacre
you could massacre
they could massacre 	I could be massacring
you could be massacring
he could be massacring
we could be massacring
you could be massacring
they could be massacring	I could have massacred
you could have massacred
he could have massacred
we could have massacred
you could have massacred
they could have massacred	I could have been massacring
you could have been massacring
he could have been massacring
we could have been massacring
you could have been massacring
they could have been massacring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't massacre
you couldn't massacre
he couldn't massacre
we couldn't massacre
you couldn't massacre
they couldn't massacre 	I couldn't be massacring
you couldn't be massacring
he couldn't be massacring
we couldn't be massacring
you couldn't be massacring
they couldn't be massacring	I couldn't have massacred
you couldn't have massacred
he couldn't have massacred
we couldn't have massacred
you couldn't have massacred
they couldn't have massacred	I couldn't have been massacring
you couldn't have been massacring
he couldn't have been massacring
we couldn't have been massacring
you couldn't have been massacring
they couldn't have been massacring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I massacre?
could you massacre?
could he massacre?
could we massacre?
could you massacre?
could they massacre? 	could I be massacring?
could you be massacring?
could he be massacring?
could we be massacring?
could you be massacring?
could they be massacring? 	could I have massacred?
could you have massacred?
could he have massacred?
could we have massacred?
could you have massacred?
could they have massacred? 	could I have been massacring?
could you have been massacring?
could he have been massacring?
could we have been massacring?
could you have been massacring?
could they have been massacring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I massacre?
couldn't you massacre?
couldn't he massacre?
couldn't we massacre?
couldn't you massacre?
couldn't they massacre? 	couldn't I be massacring?
couldn't you be massacring?
couldn't he be massacring?
couldn't we be massacring?
couldn't you be massacring?
couldn't they be massacring? 	couldn't I have massacred?
couldn't you have massacred?
couldn't he have massacred?
couldn't we have massacred?
couldn't you have massacred?
couldn't they have massacred? 	couldn't I have been massacring?
couldn't you have been massacring?
couldn't he have been massacring?
couldn't we have been massacring?
couldn't you have been massacring?
couldn't they have been massacring?