could deregulate
Regular verb: deregulate - deregulated- deregulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could deregulate
you could deregulate
she could deregulate
we could deregulate
you could deregulate
they could deregulate 	I could be deregulating
you could be deregulating
she could be deregulating
we could be deregulating
you could be deregulating
they could be deregulating	I could have deregulated
you could have deregulated
she could have deregulated
we could have deregulated
you could have deregulated
they could have deregulated	I could have been deregulating
you could have been deregulating
she could have been deregulating
we could have been deregulating
you could have been deregulating
they could have been deregulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't deregulate
you couldn't deregulate
she couldn't deregulate
we couldn't deregulate
you couldn't deregulate
they couldn't deregulate 	I couldn't be deregulating
you couldn't be deregulating
she couldn't be deregulating
we couldn't be deregulating
you couldn't be deregulating
they couldn't be deregulating	I couldn't have deregulated
you couldn't have deregulated
she couldn't have deregulated
we couldn't have deregulated
you couldn't have deregulated
they couldn't have deregulated	I couldn't have been deregulating
you couldn't have been deregulating
she couldn't have been deregulating
we couldn't have been deregulating
you couldn't have been deregulating
they couldn't have been deregulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I deregulate?
could you deregulate?
could she deregulate?
could we deregulate?
could you deregulate?
could they deregulate? 	could I be deregulating?
could you be deregulating?
could she be deregulating?
could we be deregulating?
could you be deregulating?
could they be deregulating? 	could I have deregulated?
could you have deregulated?
could she have deregulated?
could we have deregulated?
could you have deregulated?
could they have deregulated? 	could I have been deregulating?
could you have been deregulating?
could she have been deregulating?
could we have been deregulating?
could you have been deregulating?
could they have been deregulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I deregulate?
couldn't you deregulate?
couldn't she deregulate?
couldn't we deregulate?
couldn't you deregulate?
couldn't they deregulate? 	couldn't I be deregulating?
couldn't you be deregulating?
couldn't she be deregulating?
couldn't we be deregulating?
couldn't you be deregulating?
couldn't they be deregulating? 	couldn't I have deregulated?
couldn't you have deregulated?
couldn't she have deregulated?
couldn't we have deregulated?
couldn't you have deregulated?
couldn't they have deregulated? 	couldn't I have been deregulating?
couldn't you have been deregulating?
couldn't she have been deregulating?
couldn't we have been deregulating?
couldn't you have been deregulating?
couldn't they have been deregulating?