I can pave you can pave he can pave we can pave you can pave they can pave
V-ing form
I can be paving you can be paving he can be paving we can be paving you can be paving they can be paving
Perfect
I can have paved you can have paved he can have paved we can have paved you can have paved they can have paved
V-ing perfect
I can have been paving you can have been paving he can have been paving we can have been paving you can have been paving they can have been paving
Negation
Simple form
I cannot pave you cannot pave he cannot pave we cannot pave you cannot pave they cannot pave
V-ing form
I cannot be paving you cannot be paving he cannot be paving we cannot be paving you cannot be paving they cannot be paving
Perfect
I cannot have paved you cannot have paved he cannot have paved we cannot have paved you cannot have paved they cannot have paved
V-ing perfect
I cannot have been paving you cannot have been paving he cannot have been paving we cannot have been paving you cannot have been paving they cannot have been paving
Interrogative form
Simple form
can I pave? can you pave? can he pave? can we pave? can you pave? can they pave?
V-ing form
can I be paving? can you be paving? can he be paving? can we be paving? can you be paving? can they be paving?
Perfect
can I have paved? can you have paved? can he have paved? can we have paved? can you have paved? can they have paved?
V-ing perfect
can I have been paving? can you have been paving? can he have been paving? can we have been paving? can you have been paving? can they have been paving?
Interro-negative form
Simple form
can I not pave? can you not pave? can he not pave? can we not pave? can you not pave? can they not pave?
V-ing form
can I not be paving? can you not be paving? can he not be paving? can we not be paving? can you not be paving? can they not be paving?
Perfect
can I not have paved? can you not have paved? can he not have paved? can we not have paved? can you not have paved? can they not have paved?
V-ing perfect
can I not have been paving? can you not have been paving? can he not have been paving? can we not have been paving? can you not have been paving? can they not have been paving?