English verb conjugation
COULD INSTITUTE

Regular verb: institute - instituted - instituted

Affirmation

Simple form	V-ing form
I could institute you could institute he could institute we could institute you could institute they could institute	I could be instituting you could be instituting he could be instituting we could be instituting you could be instituting they could be instituting
Perfect	V-ing perfect
I could have instituted you could have instituted he could have instituted we could have instituted you could have instituted they could have instituted	I could have been instituting you could have been instituting he could have been instituting we could have been instituting you could have been instituting they could have been instituting

Negation

Simple form	V-ing form
I couldn't institute you couldn't institute he couldn't institute we couldn't institute you couldn't institute they couldn't institute	I couldn't be instituting you couldn't be instituting he couldn't be instituting we couldn't be instituting you couldn't be instituting they couldn't be instituting
Perfect	V-ing perfect
I couldn't have instituted you couldn't have instituted he couldn't have instituted we couldn't have instituted you couldn't have instituted they couldn't have instituted	I couldn't have been instituting you couldn't have been instituting he couldn't have been instituting we couldn't have been instituting you couldn't have been instituting they couldn't have been instituting

Interrogative form

Simple form	V-ing form
could I institute? could you institute? could he institute? could we institute? could you institute? could they institute?	could I be instituting? could you be instituting? could he be instituting? could we be instituting? could you be instituting? could they be instituting?
Perfect	V-ing perfect
could I have instituted? could you have instituted? could he have instituted? could we have instituted? could you have instituted? could they have instituted?	could I have been instituting? could you have been instituting? could he have been instituting? could we have been instituting? could you have been instituting? could they have been instituting?

Interro-negative form

Simple form	V-ing form
couldn't I institute? couldn't you institute? couldn't he institute? couldn't we institute? couldn't you institute? couldn't they institute?	couldn't I be instituting? couldn't you be instituting? couldn't he be instituting? couldn't we be instituting? couldn't you be instituting? couldn't they be instituting?
Perfect	V-ing perfect
couldn't I have instituted? couldn't you have instituted? couldn't he have instituted? couldn't we have instituted? couldn't you have instituted? couldn't they have instituted?	couldn't I have been instituting? couldn't you have been instituting? couldn't he have been instituting? couldn't we have been instituting? couldn't you have been instituting? couldn't they have been instituting?