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