I could disavow you could disavow he could disavow we could disavow you could disavow they could disavow
V-ing form
I could be disavowing you could be disavowing he could be disavowing we could be disavowing you could be disavowing they could be disavowing
Perfect
I could have disavowed you could have disavowed he could have disavowed we could have disavowed you could have disavowed they could have disavowed
V-ing perfect
I could have been disavowing you could have been disavowing he could have been disavowing we could have been disavowing you could have been disavowing they could have been disavowing
Negation
Simple form
I couldn't disavow you couldn't disavow he couldn't disavow we couldn't disavow you couldn't disavow they couldn't disavow
V-ing form
I couldn't be disavowing you couldn't be disavowing he couldn't be disavowing we couldn't be disavowing you couldn't be disavowing they couldn't be disavowing
Perfect
I couldn't have disavowed you couldn't have disavowed he couldn't have disavowed we couldn't have disavowed you couldn't have disavowed they couldn't have disavowed
V-ing perfect
I couldn't have been disavowing you couldn't have been disavowing he couldn't have been disavowing we couldn't have been disavowing you couldn't have been disavowing they couldn't have been disavowing
Interrogative form
Simple form
could I disavow? could you disavow? could he disavow? could we disavow? could you disavow? could they disavow?
V-ing form
could I be disavowing? could you be disavowing? could he be disavowing? could we be disavowing? could you be disavowing? could they be disavowing?
Perfect
could I have disavowed? could you have disavowed? could he have disavowed? could we have disavowed? could you have disavowed? could they have disavowed?
V-ing perfect
could I have been disavowing? could you have been disavowing? could he have been disavowing? could we have been disavowing? could you have been disavowing? could they have been disavowing?
Interro-negative form
Simple form
couldn't I disavow? couldn't you disavow? couldn't he disavow? couldn't we disavow? couldn't you disavow? couldn't they disavow?
V-ing form
couldn't I be disavowing? couldn't you be disavowing? couldn't he be disavowing? couldn't we be disavowing? couldn't you be disavowing? couldn't they be disavowing?
Perfect
couldn't I have disavowed? couldn't you have disavowed? couldn't he have disavowed? couldn't we have disavowed? couldn't you have disavowed? couldn't they have disavowed?
V-ing perfect
couldn't I have been disavowing? couldn't you have been disavowing? couldn't he have been disavowing? couldn't we have been disavowing? couldn't you have been disavowing? couldn't they have been disavowing?