could imprison
Regular verb: imprison - imprisoned- imprisoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could imprison
you could imprison
she could imprison
we could imprison
you could imprison
they could imprison 	I could be imprisoning
you could be imprisoning
she could be imprisoning
we could be imprisoning
you could be imprisoning
they could be imprisoning	I could have imprisoned
you could have imprisoned
she could have imprisoned
we could have imprisoned
you could have imprisoned
they could have imprisoned	I could have been imprisoning
you could have been imprisoning
she could have been imprisoning
we could have been imprisoning
you could have been imprisoning
they could have been imprisoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't imprison
you couldn't imprison
she couldn't imprison
we couldn't imprison
you couldn't imprison
they couldn't imprison 	I couldn't be imprisoning
you couldn't be imprisoning
she couldn't be imprisoning
we couldn't be imprisoning
you couldn't be imprisoning
they couldn't be imprisoning	I couldn't have imprisoned
you couldn't have imprisoned
she couldn't have imprisoned
we couldn't have imprisoned
you couldn't have imprisoned
they couldn't have imprisoned	I couldn't have been imprisoning
you couldn't have been imprisoning
she couldn't have been imprisoning
we couldn't have been imprisoning
you couldn't have been imprisoning
they couldn't have been imprisoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I imprison?
could you imprison?
could she imprison?
could we imprison?
could you imprison?
could they imprison? 	could I be imprisoning?
could you be imprisoning?
could she be imprisoning?
could we be imprisoning?
could you be imprisoning?
could they be imprisoning? 	could I have imprisoned?
could you have imprisoned?
could she have imprisoned?
could we have imprisoned?
could you have imprisoned?
could they have imprisoned? 	could I have been imprisoning?
could you have been imprisoning?
could she have been imprisoning?
could we have been imprisoning?
could you have been imprisoning?
could they have been imprisoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I imprison?
couldn't you imprison?
couldn't she imprison?
couldn't we imprison?
couldn't you imprison?
couldn't they imprison? 	couldn't I be imprisoning?
couldn't you be imprisoning?
couldn't she be imprisoning?
couldn't we be imprisoning?
couldn't you be imprisoning?
couldn't they be imprisoning? 	couldn't I have imprisoned?
couldn't you have imprisoned?
couldn't she have imprisoned?
couldn't we have imprisoned?
couldn't you have imprisoned?
couldn't they have imprisoned? 	couldn't I have been imprisoning?
couldn't you have been imprisoning?
couldn't she have been imprisoning?
couldn't we have been imprisoning?
couldn't you have been imprisoning?
couldn't they have been imprisoning?