I can preprocess you can preprocess he can preprocess we can preprocess you can preprocess they can preprocess
V-ing form
I can be preprocessing you can be preprocessing he can be preprocessing we can be preprocessing you can be preprocessing they can be preprocessing
Perfect
I can have preprocessed you can have preprocessed he can have preprocessed we can have preprocessed you can have preprocessed they can have preprocessed
V-ing perfect
I can have been preprocessing you can have been preprocessing he can have been preprocessing we can have been preprocessing you can have been preprocessing they can have been preprocessing
Negation
Simple form
I can't preprocess you can't preprocess he can't preprocess we can't preprocess you can't preprocess they can't preprocess
V-ing form
I can't be preprocessing you can't be preprocessing he can't be preprocessing we can't be preprocessing you can't be preprocessing they can't be preprocessing
Perfect
I can't have preprocessed you can't have preprocessed he can't have preprocessed we can't have preprocessed you can't have preprocessed they can't have preprocessed
V-ing perfect
I can't have been preprocessing you can't have been preprocessing he can't have been preprocessing we can't have been preprocessing you can't have been preprocessing they can't have been preprocessing
Interrogative form
Simple form
can I preprocess? can you preprocess? can he preprocess? can we preprocess? can you preprocess? can they preprocess?
V-ing form
can I be preprocessing? can you be preprocessing? can he be preprocessing? can we be preprocessing? can you be preprocessing? can they be preprocessing?
Perfect
can I have preprocessed? can you have preprocessed? can he have preprocessed? can we have preprocessed? can you have preprocessed? can they have preprocessed?
V-ing perfect
can I have been preprocessing? can you have been preprocessing? can he have been preprocessing? can we have been preprocessing? can you have been preprocessing? can they have been preprocessing?
Interro-negative form
Simple form
can't I preprocess? can't you preprocess? can't he preprocess? can't we preprocess? can't you preprocess? can't they preprocess?
V-ing form
can't I be preprocessing? can't you be preprocessing? can't he be preprocessing? can't we be preprocessing? can't you be preprocessing? can't they be preprocessing?
Perfect
can't I have preprocessed? can't you have preprocessed? can't he have preprocessed? can't we have preprocessed? can't you have preprocessed? can't they have preprocessed?
V-ing perfect
can't I have been preprocessing? can't you have been preprocessing? can't he have been preprocessing? can't we have been preprocessing? can't you have been preprocessing? can't they have been preprocessing?