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