I could confess you could confess he could confess we could confess you could confess they could confess
V-ing form
I could be confessing you could be confessing he could be confessing we could be confessing you could be confessing they could be confessing
Perfect
I could have confessed you could have confessed he could have confessed we could have confessed you could have confessed they could have confessed
V-ing perfect
I could have been confessing you could have been confessing he could have been confessing we could have been confessing you could have been confessing they could have been confessing
Negation
Simple form
I could not confess you could not confess he could not confess we could not confess you could not confess they could not confess
V-ing form
I could not be confessing you could not be confessing he could not be confessing we could not be confessing you could not be confessing they could not be confessing
Perfect
I could not have confessed you could not have confessed he could not have confessed we could not have confessed you could not have confessed they could not have confessed
V-ing perfect
I could not have been confessing you could not have been confessing he could not have been confessing we could not have been confessing you could not have been confessing they could not have been confessing
Interrogative form
Simple form
could I confess? could you confess? could he confess? could we confess? could you confess? could they confess?
V-ing form
could I be confessing? could you be confessing? could he be confessing? could we be confessing? could you be confessing? could they be confessing?
Perfect
could I have confessed? could you have confessed? could he have confessed? could we have confessed? could you have confessed? could they have confessed?
V-ing perfect
could I have been confessing? could you have been confessing? could he have been confessing? could we have been confessing? could you have been confessing? could they have been confessing?
Interro-negative form
Simple form
could I not confess? could you not confess? could he not confess? could we not confess? could you not confess? could they not confess?
V-ing form
could I not be confessing? could you not be confessing? could he not be confessing? could we not be confessing? could you not be confessing? could they not be confessing?
Perfect
could I not have confessed? could you not have confessed? could he not have confessed? could we not have confessed? could you not have confessed? could they not have confessed?
V-ing perfect
could I not have been confessing? could you not have been confessing? could he not have been confessing? could we not have been confessing? could you not have been confessing? could they not have been confessing?