could prosecute
Regular verb: prosecute - prosecuted- prosecuted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could prosecute
you could prosecute
she could prosecute
we could prosecute
you could prosecute
they could prosecute 	I could be prosecuting
you could be prosecuting
she could be prosecuting
we could be prosecuting
you could be prosecuting
they could be prosecuting	I could have prosecuted
you could have prosecuted
she could have prosecuted
we could have prosecuted
you could have prosecuted
they could have prosecuted	I could have been prosecuting
you could have been prosecuting
she could have been prosecuting
we could have been prosecuting
you could have been prosecuting
they could have been prosecuting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't prosecute
you couldn't prosecute
she couldn't prosecute
we couldn't prosecute
you couldn't prosecute
they couldn't prosecute 	I couldn't be prosecuting
you couldn't be prosecuting
she couldn't be prosecuting
we couldn't be prosecuting
you couldn't be prosecuting
they couldn't be prosecuting	I couldn't have prosecuted
you couldn't have prosecuted
she couldn't have prosecuted
we couldn't have prosecuted
you couldn't have prosecuted
they couldn't have prosecuted	I couldn't have been prosecuting
you couldn't have been prosecuting
she couldn't have been prosecuting
we couldn't have been prosecuting
you couldn't have been prosecuting
they couldn't have been prosecuting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I prosecute?
could you prosecute?
could she prosecute?
could we prosecute?
could you prosecute?
could they prosecute? 	could I be prosecuting?
could you be prosecuting?
could she be prosecuting?
could we be prosecuting?
could you be prosecuting?
could they be prosecuting? 	could I have prosecuted?
could you have prosecuted?
could she have prosecuted?
could we have prosecuted?
could you have prosecuted?
could they have prosecuted? 	could I have been prosecuting?
could you have been prosecuting?
could she have been prosecuting?
could we have been prosecuting?
could you have been prosecuting?
could they have been prosecuting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I prosecute?
couldn't you prosecute?
couldn't she prosecute?
couldn't we prosecute?
couldn't you prosecute?
couldn't they prosecute? 	couldn't I be prosecuting?
couldn't you be prosecuting?
couldn't she be prosecuting?
couldn't we be prosecuting?
couldn't you be prosecuting?
couldn't they be prosecuting? 	couldn't I have prosecuted?
couldn't you have prosecuted?
couldn't she have prosecuted?
couldn't we have prosecuted?
couldn't you have prosecuted?
couldn't they have prosecuted? 	couldn't I have been prosecuting?
couldn't you have been prosecuting?
couldn't she have been prosecuting?
couldn't we have been prosecuting?
couldn't you have been prosecuting?
couldn't they have been prosecuting?