English verb conjugation
COULD POLICE

Regular verb: police - policed - policed

Affirmation

Simple form	V-ing form
I could police you could police she could police we could police you could police they could police	I could be policing you could be policing she could be policing we could be policing you could be policing they could be policing
Perfect	V-ing perfect
I could have policed you could have policed she could have policed we could have policed you could have policed they could have policed	I could have been policing you could have been policing she could have been policing we could have been policing you could have been policing they could have been policing

Negation

Simple form	V-ing form
I couldn't police you couldn't police she couldn't police we couldn't police you couldn't police they couldn't police	I couldn't be policing you couldn't be policing she couldn't be policing we couldn't be policing you couldn't be policing they couldn't be policing
Perfect	V-ing perfect
I couldn't have policed you couldn't have policed she couldn't have policed we couldn't have policed you couldn't have policed they couldn't have policed	I couldn't have been policing you couldn't have been policing she couldn't have been policing we couldn't have been policing you couldn't have been policing they couldn't have been policing

Interrogative form

Simple form	V-ing form
could I police? could you police? could she police? could we police? could you police? could they police?	could I be policing? could you be policing? could she be policing? could we be policing? could you be policing? could they be policing?
Perfect	V-ing perfect
could I have policed? could you have policed? could she have policed? could we have policed? could you have policed? could they have policed?	could I have been policing? could you have been policing? could she have been policing? could we have been policing? could you have been policing? could they have been policing?

Interro-negative form

Simple form	V-ing form
couldn't I police? couldn't you police? couldn't she police? couldn't we police? couldn't you police? couldn't they police?	couldn't I be policing? couldn't you be policing? couldn't she be policing? couldn't we be policing? couldn't you be policing? couldn't they be policing?
Perfect	V-ing perfect
couldn't I have policed? couldn't you have policed? couldn't she have policed? couldn't we have policed? couldn't you have policed? couldn't they have policed?	couldn't I have been policing? couldn't you have been policing? couldn't she have been policing? couldn't we have been policing? couldn't you have been policing? couldn't they have been policing?