I can prune you can prune she can prune we can prune you can prune they can prune
V-ing form
I can be pruning you can be pruning she can be pruning we can be pruning you can be pruning they can be pruning
Perfect
I can have pruned you can have pruned she can have pruned we can have pruned you can have pruned they can have pruned
V-ing perfect
I can have been pruning you can have been pruning she can have been pruning we can have been pruning you can have been pruning they can have been pruning
Negation
Simple form
I cannot prune you cannot prune she cannot prune we cannot prune you cannot prune they cannot prune
V-ing form
I cannot be pruning you cannot be pruning she cannot be pruning we cannot be pruning you cannot be pruning they cannot be pruning
Perfect
I cannot have pruned you cannot have pruned she cannot have pruned we cannot have pruned you cannot have pruned they cannot have pruned
V-ing perfect
I cannot have been pruning you cannot have been pruning she cannot have been pruning we cannot have been pruning you cannot have been pruning they cannot have been pruning
Interrogative form
Simple form
can I prune? can you prune? can she prune? can we prune? can you prune? can they prune?
V-ing form
can I be pruning? can you be pruning? can she be pruning? can we be pruning? can you be pruning? can they be pruning?
Perfect
can I have pruned? can you have pruned? can she have pruned? can we have pruned? can you have pruned? can they have pruned?
V-ing perfect
can I have been pruning? can you have been pruning? can she have been pruning? can we have been pruning? can you have been pruning? can they have been pruning?
Interro-negative form
Simple form
can I not prune? can you not prune? can she not prune? can we not prune? can you not prune? can they not prune?
V-ing form
can I not be pruning? can you not be pruning? can she not be pruning? can we not be pruning? can you not be pruning? can they not be pruning?
Perfect
can I not have pruned? can you not have pruned? can she not have pruned? can we not have pruned? can you not have pruned? can they not have pruned?
V-ing perfect
can I not have been pruning? can you not have been pruning? can she not have been pruning? can we not have been pruning? can you not have been pruning? can they not have been pruning?