I can slow you can slow she can slow we can slow you can slow they can slow
V-ing form
I can be slowing you can be slowing she can be slowing we can be slowing you can be slowing they can be slowing
Perfect
I can have slowed you can have slowed she can have slowed we can have slowed you can have slowed they can have slowed
V-ing perfect
I can have been slowing you can have been slowing she can have been slowing we can have been slowing you can have been slowing they can have been slowing
Negation
Simple form
I cannot slow you cannot slow she cannot slow we cannot slow you cannot slow they cannot slow
V-ing form
I cannot be slowing you cannot be slowing she cannot be slowing we cannot be slowing you cannot be slowing they cannot be slowing
Perfect
I cannot have slowed you cannot have slowed she cannot have slowed we cannot have slowed you cannot have slowed they cannot have slowed
V-ing perfect
I cannot have been slowing you cannot have been slowing she cannot have been slowing we cannot have been slowing you cannot have been slowing they cannot have been slowing
Interrogative form
Simple form
can I slow? can you slow? can she slow? can we slow? can you slow? can they slow?
V-ing form
can I be slowing? can you be slowing? can she be slowing? can we be slowing? can you be slowing? can they be slowing?
Perfect
can I have slowed? can you have slowed? can she have slowed? can we have slowed? can you have slowed? can they have slowed?
V-ing perfect
can I have been slowing? can you have been slowing? can she have been slowing? can we have been slowing? can you have been slowing? can they have been slowing?
Interro-negative form
Simple form
can I not slow? can you not slow? can she not slow? can we not slow? can you not slow? can they not slow?
V-ing form
can I not be slowing? can you not be slowing? can she not be slowing? can we not be slowing? can you not be slowing? can they not be slowing?
Perfect
can I not have slowed? can you not have slowed? can she not have slowed? can we not have slowed? can you not have slowed? can they not have slowed?
V-ing perfect
can I not have been slowing? can you not have been slowing? can she not have been slowing? can we not have been slowing? can you not have been slowing? can they not have been slowing?