I could redye you could redye she could redye we could redye you could redye they could redye
V-ing form
I could be redying you could be redying she could be redying we could be redying you could be redying they could be redying
Perfect
I could have redyed you could have redyed she could have redyed we could have redyed you could have redyed they could have redyed
V-ing perfect
I could have been redying you could have been redying she could have been redying we could have been redying you could have been redying they could have been redying
Negation
Simple form
I could not redye you could not redye she could not redye we could not redye you could not redye they could not redye
V-ing form
I could not be redying you could not be redying she could not be redying we could not be redying you could not be redying they could not be redying
Perfect
I could not have redyed you could not have redyed she could not have redyed we could not have redyed you could not have redyed they could not have redyed
V-ing perfect
I could not have been redying you could not have been redying she could not have been redying we could not have been redying you could not have been redying they could not have been redying
Interrogative form
Simple form
could I redye? could you redye? could she redye? could we redye? could you redye? could they redye?
V-ing form
could I be redying? could you be redying? could she be redying? could we be redying? could you be redying? could they be redying?
Perfect
could I have redyed? could you have redyed? could she have redyed? could we have redyed? could you have redyed? could they have redyed?
V-ing perfect
could I have been redying? could you have been redying? could she have been redying? could we have been redying? could you have been redying? could they have been redying?
Interro-negative form
Simple form
could I not redye? could you not redye? could she not redye? could we not redye? could you not redye? could they not redye?
V-ing form
could I not be redying? could you not be redying? could she not be redying? could we not be redying? could you not be redying? could they not be redying?
Perfect
could I not have redyed? could you not have redyed? could she not have redyed? could we not have redyed? could you not have redyed? could they not have redyed?
V-ing perfect
could I not have been redying? could you not have been redying? could she not have been redying? could we not have been redying? could you not have been redying? could they not have been redying?