English verb conjugation
COULD PREPROCESS

Regular verb: preprocess - preprocessed - preprocessed

Affirmation

Simple form	V-ing form
I could preprocess you could preprocess he could preprocess we could preprocess you could preprocess they could preprocess	I could be preprocessing you could be preprocessing he could be preprocessing we could be preprocessing you could be preprocessing they could be preprocessing
Perfect	V-ing perfect
I could have preprocessed you could have preprocessed he could have preprocessed we could have preprocessed you could have preprocessed they could have preprocessed	I could have been preprocessing you could have been preprocessing he could have been preprocessing we could have been preprocessing you could have been preprocessing they could have been preprocessing

Negation

Simple form	V-ing form
I could not preprocess you could not preprocess he could not preprocess we could not preprocess you could not preprocess they could not preprocess	I could not be preprocessing you could not be preprocessing he could not be preprocessing we could not be preprocessing you could not be preprocessing they could not be preprocessing
Perfect	V-ing perfect
I could not have preprocessed you could not have preprocessed he could not have preprocessed we could not have preprocessed you could not have preprocessed they could not have preprocessed	I could not have been preprocessing you could not have been preprocessing he could not have been preprocessing we could not have been preprocessing you could not have been preprocessing they could not have been preprocessing

Interrogative form

Simple form	V-ing form
could I preprocess? could you preprocess? could he preprocess? could we preprocess? could you preprocess? could they preprocess?	could I be preprocessing? could you be preprocessing? could he be preprocessing? could we be preprocessing? could you be preprocessing? could they be preprocessing?
Perfect	V-ing perfect
could I have preprocessed? could you have preprocessed? could he have preprocessed? could we have preprocessed? could you have preprocessed? could they have preprocessed?	could I have been preprocessing? could you have been preprocessing? could he have been preprocessing? could we have been preprocessing? could you have been preprocessing? could they have been preprocessing?

Interro-negative form

Simple form	V-ing form
could I not preprocess? could you not preprocess? could he not preprocess? could we not preprocess? could you not preprocess? could they not preprocess?	could I not be preprocessing? could you not be preprocessing? could he not be preprocessing? could we not be preprocessing? could you not be preprocessing? could they not be preprocessing?
Perfect	V-ing perfect
could I not have preprocessed? could you not have preprocessed? could he not have preprocessed? could we not have preprocessed? could you not have preprocessed? could they not have preprocessed?	could I not have been preprocessing? could you not have been preprocessing? could he not have been preprocessing? could we not have been preprocessing? could you not have been preprocessing? could they not have been preprocessing?