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 could not predict you could not predict he could not predict we could not predict you could not predict they could not predict	I could not be predicting you could not be predicting he could not be predicting we could not be predicting you could not be predicting they could not be predicting
Perfect	V-ing perfect
I could not have predicted you could not have predicted he could not have predicted we could not have predicted you could not have predicted they could not have predicted	I could not have been predicting you could not have been predicting he could not have been predicting we could not have been predicting you could not have been predicting they could not 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
could I not predict? could you not predict? could he not predict? could we not predict? could you not predict? could they not predict?	could I not be predicting? could you not be predicting? could he not be predicting? could we not be predicting? could you not be predicting? could they not be predicting?
Perfect	V-ing perfect
could I not have predicted? could you not have predicted? could he not have predicted? could we not have predicted? could you not have predicted? could they not have predicted?	could I not have been predicting? could you not have been predicting? could he not have been predicting? could we not have been predicting? could you not have been predicting? could they not have been predicting?