I can ape you can ape he can ape we can ape you can ape they can ape
V-ing form
I can be aping you can be aping he can be aping we can be aping you can be aping they can be aping
Perfect
I can have aped you can have aped he 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 he can have been aping we can have been aping you can have been aping they can have been aping
Negation
Simple form
I can't ape you can't ape he can't ape we can't ape you can't ape they can't ape
V-ing form
I can't be aping you can't be aping he can't be aping we can't be aping you can't be aping they can't be aping
Perfect
I can't have aped you can't have aped he can't have aped we can't have aped you can't have aped they can't have aped
V-ing perfect
I can't have been aping you can't have been aping he can't have been aping we can't have been aping you can't have been aping they can't have been aping
Interrogative form
Simple form
can I ape? can you ape? can he ape? can we ape? can you ape? can they ape?
V-ing form
can I be aping? can you be aping? can he be aping? can we be aping? can you be aping? can they be aping?
Perfect
can I have aped? can you have aped? can he 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 he have been aping? can we have been aping? can you have been aping? can they have been aping?
Interro-negative form
Simple form
can't I ape? can't you ape? can't he ape? can't we ape? can't you ape? can't they ape?
V-ing form
can't I be aping? can't you be aping? can't he be aping? can't we be aping? can't you be aping? can't they be aping?
Perfect
can't I have aped? can't you have aped? can't he have aped? can't we have aped? can't you have aped? can't they have aped?
V-ing perfect
can't I have been aping? can't you have been aping? can't he have been aping? can't we have been aping? can't you have been aping? can't they have been aping?