I could constitute you could constitute she could constitute we could constitute you could constitute they could constitute
V-ing form
I could be constituting you could be constituting she could be constituting we could be constituting you could be constituting they could be constituting
Perfect
I could have constituted you could have constituted she 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 she 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 she 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 she 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 she 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 she 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 she constitute? could we constitute? could you constitute? could they constitute?
V-ing form
could I be constituting? could you be constituting? could she be constituting? could we be constituting? could you be constituting? could they be constituting?
Perfect
could I have constituted? could you have constituted? could she 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 she 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 she 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 she 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 she 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 she have been constituting? couldn't we have been constituting? couldn't you have been constituting? couldn't they have been constituting?