English verb conjugation
COULD APE

Regular verb: ape - aped - aped

Affirmation

Simple form	V-ing form
I could ape you could ape he could ape we could ape you could ape they could ape	I could be aping you could be aping he could be aping we could be aping you could be aping they could be aping
Perfect	V-ing perfect
I could have aped you could have aped he could have aped we could have aped you could have aped they could have aped	I could have been aping you could have been aping he could have been aping we could have been aping you could have been aping they could have been aping

Negation

Simple form	V-ing form
I couldn't ape you couldn't ape he couldn't ape we couldn't ape you couldn't ape they couldn't ape	I couldn't be aping you couldn't be aping he couldn't be aping we couldn't be aping you couldn't be aping they couldn't be aping
Perfect	V-ing perfect
I couldn't have aped you couldn't have aped he couldn't have aped we couldn't have aped you couldn't have aped they couldn't have aped	I couldn't have been aping you couldn't have been aping he couldn't have been aping we couldn't have been aping you couldn't have been aping they couldn't have been aping

Interrogative form

Simple form	V-ing form
could I ape? could you ape? could he ape? could we ape? could you ape? could they ape?	could I be aping? could you be aping? could he be aping? could we be aping? could you be aping? could they be aping?
Perfect	V-ing perfect
could I have aped? could you have aped? could he have aped? could we have aped? could you have aped? could they have aped?	could I have been aping? could you have been aping? could he have been aping? could we have been aping? could you have been aping? could they have been aping?

Interro-negative form

Simple form	V-ing form
couldn't I ape? couldn't you ape? couldn't he ape? couldn't we ape? couldn't you ape? couldn't they ape?	couldn't I be aping? couldn't you be aping? couldn't he be aping? couldn't we be aping? couldn't you be aping? couldn't they be aping?
Perfect	V-ing perfect
couldn't I have aped? couldn't you have aped? couldn't he have aped? couldn't we have aped? couldn't you have aped? couldn't they have aped?	couldn't I have been aping? couldn't you have been aping? couldn't he have been aping? couldn't we have been aping? couldn't you have been aping? couldn't they have been aping?