could cannibalize
Regular verb: cannibalize - cannibalized- cannibalized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cannibalize
you could cannibalize
he could cannibalize
we could cannibalize
you could cannibalize
they could cannibalize 	I could be cannibalizing
you could be cannibalizing
he could be cannibalizing
we could be cannibalizing
you could be cannibalizing
they could be cannibalizing	I could have cannibalized
you could have cannibalized
he could have cannibalized
we could have cannibalized
you could have cannibalized
they could have cannibalized	I could have been cannibalizing
you could have been cannibalizing
he could have been cannibalizing
we could have been cannibalizing
you could have been cannibalizing
they could have been cannibalizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't cannibalize
you couldn't cannibalize
he couldn't cannibalize
we couldn't cannibalize
you couldn't cannibalize
they couldn't cannibalize 	I couldn't be cannibalizing
you couldn't be cannibalizing
he couldn't be cannibalizing
we couldn't be cannibalizing
you couldn't be cannibalizing
they couldn't be cannibalizing	I couldn't have cannibalized
you couldn't have cannibalized
he couldn't have cannibalized
we couldn't have cannibalized
you couldn't have cannibalized
they couldn't have cannibalized	I couldn't have been cannibalizing
you couldn't have been cannibalizing
he couldn't have been cannibalizing
we couldn't have been cannibalizing
you couldn't have been cannibalizing
they couldn't have been cannibalizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cannibalize?
could you cannibalize?
could he cannibalize?
could we cannibalize?
could you cannibalize?
could they cannibalize? 	could I be cannibalizing?
could you be cannibalizing?
could he be cannibalizing?
could we be cannibalizing?
could you be cannibalizing?
could they be cannibalizing? 	could I have cannibalized?
could you have cannibalized?
could he have cannibalized?
could we have cannibalized?
could you have cannibalized?
could they have cannibalized? 	could I have been cannibalizing?
could you have been cannibalizing?
could he have been cannibalizing?
could we have been cannibalizing?
could you have been cannibalizing?
could they have been cannibalizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I cannibalize?
couldn't you cannibalize?
couldn't he cannibalize?
couldn't we cannibalize?
couldn't you cannibalize?
couldn't they cannibalize? 	couldn't I be cannibalizing?
couldn't you be cannibalizing?
couldn't he be cannibalizing?
couldn't we be cannibalizing?
couldn't you be cannibalizing?
couldn't they be cannibalizing? 	couldn't I have cannibalized?
couldn't you have cannibalized?
couldn't he have cannibalized?
couldn't we have cannibalized?
couldn't you have cannibalized?
couldn't they have cannibalized? 	couldn't I have been cannibalizing?
couldn't you have been cannibalizing?
couldn't he have been cannibalizing?
couldn't we have been cannibalizing?
couldn't you have been cannibalizing?
couldn't they have been cannibalizing?