English verb conjugation
COULD MASSACRE

Regular verb: massacre - massacred - massacred

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I could not massacre you could not massacre he could not massacre we could not massacre you could not massacre they could not massacre	I could not be massacring you could not be massacring he could not be massacring we could not be massacring you could not be massacring they could not be massacring
Perfect	V-ing perfect
I could not have massacred you could not have massacred he could not have massacred we could not have massacred you could not have massacred they could not have massacred	I could not have been massacring you could not have been massacring he could not have been massacring we could not have been massacring you could not have been massacring they could not have been massacring

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
could I not massacre? could you not massacre? could he not massacre? could we not massacre? could you not massacre? could they not massacre?	could I not be massacring? could you not be massacring? could he not be massacring? could we not be massacring? could you not be massacring? could they not be massacring?
Perfect	V-ing perfect
could I not have massacred? could you not have massacred? could he not have massacred? could we not have massacred? could you not have massacred? could they not have massacred?	could I not have been massacring? could you not have been massacring? could he not have been massacring? could we not have been massacring? could you not have been massacring? could they not have been massacring?