I can ape you can ape she can ape we can ape you can ape they can ape
V-ing form
I can be aping you can be aping she can be aping we can be aping you can be aping they can be aping
Perfect
I can have aped you can have aped she can have aped we can have aped you can have aped they can have aped
V-ing perfect
I can have been aping you can have been aping she can have been aping we can have been aping you can have been aping they can have been aping
Negation
Simple form
I cannot ape you cannot ape she cannot ape we cannot ape you cannot ape they cannot ape
V-ing form
I cannot be aping you cannot be aping she cannot be aping we cannot be aping you cannot be aping they cannot be aping
Perfect
I cannot have aped you cannot have aped she cannot have aped we cannot have aped you cannot have aped they cannot have aped
V-ing perfect
I cannot have been aping you cannot have been aping she cannot have been aping we cannot have been aping you cannot have been aping they cannot have been aping
Interrogative form
Simple form
can I ape? can you ape? can she ape? can we ape? can you ape? can they ape?
V-ing form
can I be aping? can you be aping? can she be aping? can we be aping? can you be aping? can they be aping?
Perfect
can I have aped? can you have aped? can she have aped? can we have aped? can you have aped? can they have aped?
V-ing perfect
can I have been aping? can you have been aping? can she have been aping? can we have been aping? can you have been aping? can they have been aping?
Interro-negative form
Simple form
can I not ape? can you not ape? can she not ape? can we not ape? can you not ape? can they not ape?
V-ing form
can I not be aping? can you not be aping? can she not be aping? can we not be aping? can you not be aping? can they not be aping?
Perfect
can I not have aped? can you not have aped? can she not have aped? can we not have aped? can you not have aped? can they not have aped?
V-ing perfect
can I not have been aping? can you not have been aping? can she not have been aping? can we not have been aping? can you not have been aping? can they not have been aping?