I could constitute you could constitute he could constitute we could constitute you could constitute they could constitute
V-ing form
I could be constituting you could be constituting he could be constituting we could be constituting you could be constituting they could be constituting
Perfect
I could have constituted you could have constituted he could have constituted we could have constituted you could have constituted they could have constituted
V-ing perfect
I could have been constituting you could have been constituting he could have been constituting we could have been constituting you could have been constituting they could have been constituting
Negation
Simple form
I couldn't constitute you couldn't constitute he couldn't constitute we couldn't constitute you couldn't constitute they couldn't constitute
V-ing form
I couldn't be constituting you couldn't be constituting he couldn't be constituting we couldn't be constituting you couldn't be constituting they couldn't be constituting
Perfect
I couldn't have constituted you couldn't have constituted he couldn't have constituted we couldn't have constituted you couldn't have constituted they couldn't have constituted
V-ing perfect
I couldn't have been constituting you couldn't have been constituting he couldn't have been constituting we couldn't have been constituting you couldn't have been constituting they couldn't have been constituting
Interrogative form
Simple form
could I constitute? could you constitute? could he constitute? could we constitute? could you constitute? could they constitute?
V-ing form
could I be constituting? could you be constituting? could he be constituting? could we be constituting? could you be constituting? could they be constituting?
Perfect
could I have constituted? could you have constituted? could he have constituted? could we have constituted? could you have constituted? could they have constituted?
V-ing perfect
could I have been constituting? could you have been constituting? could he have been constituting? could we have been constituting? could you have been constituting? could they have been constituting?
Interro-negative form
Simple form
couldn't I constitute? couldn't you constitute? couldn't he constitute? couldn't we constitute? couldn't you constitute? couldn't they constitute?
V-ing form
couldn't I be constituting? couldn't you be constituting? couldn't he be constituting? couldn't we be constituting? couldn't you be constituting? couldn't they be constituting?
Perfect
couldn't I have constituted? couldn't you have constituted? couldn't he have constituted? couldn't we have constituted? couldn't you have constituted? couldn't they have constituted?
V-ing perfect
couldn't I have been constituting? couldn't you have been constituting? couldn't he have been constituting? couldn't we have been constituting? couldn't you have been constituting? couldn't they have been constituting?