I could dishevel you could dishevel he could dishevel we could dishevel you could dishevel they could dishevel
V-ing form
I could be disheveling you could be disheveling he could be disheveling we could be disheveling you could be disheveling they could be disheveling
Perfect
I could have disheveled you could have disheveled he could have disheveled we could have disheveled you could have disheveled they could have disheveled
V-ing perfect
I could have been disheveling you could have been disheveling he could have been disheveling we could have been disheveling you could have been disheveling they could have been disheveling
Negation
Simple form
I could not dishevel you could not dishevel he could not dishevel we could not dishevel you could not dishevel they could not dishevel
V-ing form
I could not be disheveling you could not be disheveling he could not be disheveling we could not be disheveling you could not be disheveling they could not be disheveling
Perfect
I could not have disheveled you could not have disheveled he could not have disheveled we could not have disheveled you could not have disheveled they could not have disheveled
V-ing perfect
I could not have been disheveling you could not have been disheveling he could not have been disheveling we could not have been disheveling you could not have been disheveling they could not have been disheveling
Interrogative form
Simple form
could I dishevel? could you dishevel? could he dishevel? could we dishevel? could you dishevel? could they dishevel?
V-ing form
could I be disheveling? could you be disheveling? could he be disheveling? could we be disheveling? could you be disheveling? could they be disheveling?
Perfect
could I have disheveled? could you have disheveled? could he have disheveled? could we have disheveled? could you have disheveled? could they have disheveled?
V-ing perfect
could I have been disheveling? could you have been disheveling? could he have been disheveling? could we have been disheveling? could you have been disheveling? could they have been disheveling?
Interro-negative form
Simple form
could I not dishevel? could you not dishevel? could he not dishevel? could we not dishevel? could you not dishevel? could they not dishevel?
V-ing form
could I not be disheveling? could you not be disheveling? could he not be disheveling? could we not be disheveling? could you not be disheveling? could they not be disheveling?
Perfect
could I not have disheveled? could you not have disheveled? could he not have disheveled? could we not have disheveled? could you not have disheveled? could they not have disheveled?
V-ing perfect
could I not have been disheveling? could you not have been disheveling? could he not have been disheveling? could we not have been disheveling? could you not have been disheveling? could they not have been disheveling?