could ransack
Regular verb: ransack - ransacked- ransacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could ransack
you could ransack
he could ransack
we could ransack
you could ransack
they could ransack 	I could be ransacking
you could be ransacking
he could be ransacking
we could be ransacking
you could be ransacking
they could be ransacking	I could have ransacked
you could have ransacked
he could have ransacked
we could have ransacked
you could have ransacked
they could have ransacked	I could have been ransacking
you could have been ransacking
he could have been ransacking
we could have been ransacking
you could have been ransacking
they could have been ransacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't ransack
you couldn't ransack
he couldn't ransack
we couldn't ransack
you couldn't ransack
they couldn't ransack 	I couldn't be ransacking
you couldn't be ransacking
he couldn't be ransacking
we couldn't be ransacking
you couldn't be ransacking
they couldn't be ransacking	I couldn't have ransacked
you couldn't have ransacked
he couldn't have ransacked
we couldn't have ransacked
you couldn't have ransacked
they couldn't have ransacked	I couldn't have been ransacking
you couldn't have been ransacking
he couldn't have been ransacking
we couldn't have been ransacking
you couldn't have been ransacking
they couldn't have been ransacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I ransack?
could you ransack?
could he ransack?
could we ransack?
could you ransack?
could they ransack? 	could I be ransacking?
could you be ransacking?
could he be ransacking?
could we be ransacking?
could you be ransacking?
could they be ransacking? 	could I have ransacked?
could you have ransacked?
could he have ransacked?
could we have ransacked?
could you have ransacked?
could they have ransacked? 	could I have been ransacking?
could you have been ransacking?
could he have been ransacking?
could we have been ransacking?
could you have been ransacking?
could they have been ransacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I ransack?
couldn't you ransack?
couldn't he ransack?
couldn't we ransack?
couldn't you ransack?
couldn't they ransack? 	couldn't I be ransacking?
couldn't you be ransacking?
couldn't he be ransacking?
couldn't we be ransacking?
couldn't you be ransacking?
couldn't they be ransacking? 	couldn't I have ransacked?
couldn't you have ransacked?
couldn't he have ransacked?
couldn't we have ransacked?
couldn't you have ransacked?
couldn't they have ransacked? 	couldn't I have been ransacking?
couldn't you have been ransacking?
couldn't he have been ransacking?
couldn't we have been ransacking?
couldn't you have been ransacking?
couldn't they have been ransacking?