I can implement you can implement she can implement we can implement you can implement they can implement
V-ing form
I can be implementing you can be implementing she can be implementing we can be implementing you can be implementing they can be implementing
Perfect
I can have implemented you can have implemented she can have implemented we can have implemented you can have implemented they can have implemented
V-ing perfect
I can have been implementing you can have been implementing she can have been implementing we can have been implementing you can have been implementing they can have been implementing
Negation
Simple form
I cannot implement you cannot implement she cannot implement we cannot implement you cannot implement they cannot implement
V-ing form
I cannot be implementing you cannot be implementing she cannot be implementing we cannot be implementing you cannot be implementing they cannot be implementing
Perfect
I cannot have implemented you cannot have implemented she cannot have implemented we cannot have implemented you cannot have implemented they cannot have implemented
V-ing perfect
I cannot have been implementing you cannot have been implementing she cannot have been implementing we cannot have been implementing you cannot have been implementing they cannot have been implementing
Interrogative form
Simple form
can I implement? can you implement? can she implement? can we implement? can you implement? can they implement?
V-ing form
can I be implementing? can you be implementing? can she be implementing? can we be implementing? can you be implementing? can they be implementing?
Perfect
can I have implemented? can you have implemented? can she have implemented? can we have implemented? can you have implemented? can they have implemented?
V-ing perfect
can I have been implementing? can you have been implementing? can she have been implementing? can we have been implementing? can you have been implementing? can they have been implementing?
Interro-negative form
Simple form
can I not implement? can you not implement? can she not implement? can we not implement? can you not implement? can they not implement?
V-ing form
can I not be implementing? can you not be implementing? can she not be implementing? can we not be implementing? can you not be implementing? can they not be implementing?
Perfect
can I not have implemented? can you not have implemented? can she not have implemented? can we not have implemented? can you not have implemented? can they not have implemented?
V-ing perfect
can I not have been implementing? can you not have been implementing? can she not have been implementing? can we not have been implementing? can you not have been implementing? can they not have been implementing?