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