I could confect you could confect he could confect we could confect you could confect they could confect
V-ing form
I could be confecting you could be confecting he could be confecting we could be confecting you could be confecting they could be confecting
Perfect
I could have confected you could have confected he could have confected we could have confected you could have confected they could have confected
V-ing perfect
I could have been confecting you could have been confecting he could have been confecting we could have been confecting you could have been confecting they could have been confecting
Negation
Simple form
I could not confect you could not confect he could not confect we could not confect you could not confect they could not confect
V-ing form
I could not be confecting you could not be confecting he could not be confecting we could not be confecting you could not be confecting they could not be confecting
Perfect
I could not have confected you could not have confected he could not have confected we could not have confected you could not have confected they could not have confected
V-ing perfect
I could not have been confecting you could not have been confecting he could not have been confecting we could not have been confecting you could not have been confecting they could not have been confecting
Interrogative form
Simple form
could I confect? could you confect? could he confect? could we confect? could you confect? could they confect?
V-ing form
could I be confecting? could you be confecting? could he be confecting? could we be confecting? could you be confecting? could they be confecting?
Perfect
could I have confected? could you have confected? could he have confected? could we have confected? could you have confected? could they have confected?
V-ing perfect
could I have been confecting? could you have been confecting? could he have been confecting? could we have been confecting? could you have been confecting? could they have been confecting?
Interro-negative form
Simple form
could I not confect? could you not confect? could he not confect? could we not confect? could you not confect? could they not confect?
V-ing form
could I not be confecting? could you not be confecting? could he not be confecting? could we not be confecting? could you not be confecting? could they not be confecting?
Perfect
could I not have confected? could you not have confected? could he not have confected? could we not have confected? could you not have confected? could they not have confected?
V-ing perfect
could I not have been confecting? could you not have been confecting? could he not have been confecting? could we not have been confecting? could you not have been confecting? could they not have been confecting?