English verb conjugation
COULD PREDICT

Regular verb: predict - predicted - predicted

Affirmation

Simple form	V-ing form
I could predict you could predict he could predict we could predict you could predict they could predict	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
could I predict? could you predict? could he predict? could we predict? could you predict? could they predict?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?