I can massacre you can massacre she can massacre we can massacre you can massacre they can massacre
V-ing form
I can be massacring you can be massacring she can be massacring we can be massacring you can be massacring they can be massacring
Perfect
I can have massacred you can have massacred she can have massacred we can have massacred you can have massacred they can have massacred
V-ing perfect
I can have been massacring you can have been massacring she can have been massacring we can have been massacring you can have been massacring they can have been massacring
Negation
Simple form
I can't massacre you can't massacre she can't massacre we can't massacre you can't massacre they can't massacre
V-ing form
I can't be massacring you can't be massacring she can't be massacring we can't be massacring you can't be massacring they can't be massacring
Perfect
I can't have massacred you can't have massacred she can't have massacred we can't have massacred you can't have massacred they can't have massacred
V-ing perfect
I can't have been massacring you can't have been massacring she can't have been massacring we can't have been massacring you can't have been massacring they can't have been massacring
Interrogative form
Simple form
can I massacre? can you massacre? can she massacre? can we massacre? can you massacre? can they massacre?
V-ing form
can I be massacring? can you be massacring? can she be massacring? can we be massacring? can you be massacring? can they be massacring?
Perfect
can I have massacred? can you have massacred? can she have massacred? can we have massacred? can you have massacred? can they have massacred?
V-ing perfect
can I have been massacring? can you have been massacring? can she have been massacring? can we have been massacring? can you have been massacring? can they have been massacring?
Interro-negative form
Simple form
can't I massacre? can't you massacre? can't she massacre? can't we massacre? can't you massacre? can't they massacre?
V-ing form
can't I be massacring? can't you be massacring? can't she be massacring? can't we be massacring? can't you be massacring? can't they be massacring?
Perfect
can't I have massacred? can't you have massacred? can't she have massacred? can't we have massacred? can't you have massacred? can't they have massacred?
V-ing perfect
can't I have been massacring? can't you have been massacring? can't she have been massacring? can't we have been massacring? can't you have been massacring? can't they have been massacring?