I could confess you could confess she could confess we could confess you could confess they could confess
V-ing form
I could be confessing you could be confessing she could be confessing we could be confessing you could be confessing they could be confessing
Perfect
I could have confessed you could have confessed she 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 she could have been confessing we could have been confessing you could have been confessing they could have been confessing
Negation
Simple form
I couldn't confess you couldn't confess she couldn't confess we couldn't confess you couldn't confess they couldn't confess
V-ing form
I couldn't be confessing you couldn't be confessing she couldn't be confessing we couldn't be confessing you couldn't be confessing they couldn't be confessing
Perfect
I couldn't have confessed you couldn't have confessed she couldn't have confessed we couldn't have confessed you couldn't have confessed they couldn't have confessed
V-ing perfect
I couldn't have been confessing you couldn't have been confessing she couldn't have been confessing we couldn't have been confessing you couldn't have been confessing they couldn't have been confessing
Interrogative form
Simple form
could I confess? could you confess? could she confess? could we confess? could you confess? could they confess?
V-ing form
could I be confessing? could you be confessing? could she be confessing? could we be confessing? could you be confessing? could they be confessing?
Perfect
could I have confessed? could you have confessed? could she 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 she have been confessing? could we have been confessing? could you have been confessing? could they have been confessing?
Interro-negative form
Simple form
couldn't I confess? couldn't you confess? couldn't she confess? couldn't we confess? couldn't you confess? couldn't they confess?
V-ing form
couldn't I be confessing? couldn't you be confessing? couldn't she be confessing? couldn't we be confessing? couldn't you be confessing? couldn't they be confessing?
Perfect
couldn't I have confessed? couldn't you have confessed? couldn't she have confessed? couldn't we have confessed? couldn't you have confessed? couldn't they have confessed?
V-ing perfect
couldn't I have been confessing? couldn't you have been confessing? couldn't she have been confessing? couldn't we have been confessing? couldn't you have been confessing? couldn't they have been confessing?