I can cheat you can cheat she can cheat we can cheat you can cheat they can cheat
V-ing form
I can be cheating you can be cheating she can be cheating we can be cheating you can be cheating they can be cheating
Perfect
I can have cheated you can have cheated she can have cheated we can have cheated you can have cheated they can have cheated
V-ing perfect
I can have been cheating you can have been cheating she can have been cheating we can have been cheating you can have been cheating they can have been cheating
Negation
Simple form
I cannot cheat you cannot cheat she cannot cheat we cannot cheat you cannot cheat they cannot cheat
V-ing form
I cannot be cheating you cannot be cheating she cannot be cheating we cannot be cheating you cannot be cheating they cannot be cheating
Perfect
I cannot have cheated you cannot have cheated she cannot have cheated we cannot have cheated you cannot have cheated they cannot have cheated
V-ing perfect
I cannot have been cheating you cannot have been cheating she cannot have been cheating we cannot have been cheating you cannot have been cheating they cannot have been cheating
Interrogative form
Simple form
can I cheat? can you cheat? can she cheat? can we cheat? can you cheat? can they cheat?
V-ing form
can I be cheating? can you be cheating? can she be cheating? can we be cheating? can you be cheating? can they be cheating?
Perfect
can I have cheated? can you have cheated? can she have cheated? can we have cheated? can you have cheated? can they have cheated?
V-ing perfect
can I have been cheating? can you have been cheating? can she have been cheating? can we have been cheating? can you have been cheating? can they have been cheating?
Interro-negative form
Simple form
can I not cheat? can you not cheat? can she not cheat? can we not cheat? can you not cheat? can they not cheat?
V-ing form
can I not be cheating? can you not be cheating? can she not be cheating? can we not be cheating? can you not be cheating? can they not be cheating?
Perfect
can I not have cheated? can you not have cheated? can she not have cheated? can we not have cheated? can you not have cheated? can they not have cheated?
V-ing perfect
can I not have been cheating? can you not have been cheating? can she not have been cheating? can we not have been cheating? can you not have been cheating? can they not have been cheating?