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