English verb conjugation
COULD MASSACRE

Regular verb: massacre - massacred - massacred

Affirmation

Simple form	V-ing form
I could massacre you could massacre she could massacre we could massacre you could massacre they could massacre	I could be massacring you could be massacring she 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 she 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 she 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 she 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 she 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 she 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 she 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 she massacre? could we massacre? could you massacre? could they massacre?	could I be massacring? could you be massacring? could she 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 she 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 she 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 she 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 she 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 she 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 she not have been massacring? could we not have been massacring? could you not have been massacring? could they not have been massacring?