I could offprint you could offprint she could offprint we could offprint you could offprint they could offprint
V-ing form
I could be offprinting you could be offprinting she could be offprinting we could be offprinting you could be offprinting they could be offprinting
Perfect
I could have offprinted you could have offprinted she could have offprinted we could have offprinted you could have offprinted they could have offprinted
V-ing perfect
I could have been offprinting you could have been offprinting she could have been offprinting we could have been offprinting you could have been offprinting they could have been offprinting
Negation
Simple form
I could not offprint you could not offprint she could not offprint we could not offprint you could not offprint they could not offprint
V-ing form
I could not be offprinting you could not be offprinting she could not be offprinting we could not be offprinting you could not be offprinting they could not be offprinting
Perfect
I could not have offprinted you could not have offprinted she could not have offprinted we could not have offprinted you could not have offprinted they could not have offprinted
V-ing perfect
I could not have been offprinting you could not have been offprinting she could not have been offprinting we could not have been offprinting you could not have been offprinting they could not have been offprinting
Interrogative form
Simple form
could I offprint? could you offprint? could she offprint? could we offprint? could you offprint? could they offprint?
V-ing form
could I be offprinting? could you be offprinting? could she be offprinting? could we be offprinting? could you be offprinting? could they be offprinting?
Perfect
could I have offprinted? could you have offprinted? could she have offprinted? could we have offprinted? could you have offprinted? could they have offprinted?
V-ing perfect
could I have been offprinting? could you have been offprinting? could she have been offprinting? could we have been offprinting? could you have been offprinting? could they have been offprinting?
Interro-negative form
Simple form
could I not offprint? could you not offprint? could she not offprint? could we not offprint? could you not offprint? could they not offprint?
V-ing form
could I not be offprinting? could you not be offprinting? could she not be offprinting? could we not be offprinting? could you not be offprinting? could they not be offprinting?
Perfect
could I not have offprinted? could you not have offprinted? could she not have offprinted? could we not have offprinted? could you not have offprinted? could they not have offprinted?
V-ing perfect
could I not have been offprinting? could you not have been offprinting? could she not have been offprinting? could we not have been offprinting? could you not have been offprinting? could they not have been offprinting?