I can gape you can gape he can gape we can gape you can gape they can gape
V-ing form
I can be gaping you can be gaping he can be gaping we can be gaping you can be gaping they can be gaping
Perfect
I can have gaped you can have gaped he can have gaped we can have gaped you can have gaped they can have gaped
V-ing perfect
I can have been gaping you can have been gaping he can have been gaping we can have been gaping you can have been gaping they can have been gaping
Negation
Simple form
I cannot gape you cannot gape he cannot gape we cannot gape you cannot gape they cannot gape
V-ing form
I cannot be gaping you cannot be gaping he cannot be gaping we cannot be gaping you cannot be gaping they cannot be gaping
Perfect
I cannot have gaped you cannot have gaped he cannot have gaped we cannot have gaped you cannot have gaped they cannot have gaped
V-ing perfect
I cannot have been gaping you cannot have been gaping he cannot have been gaping we cannot have been gaping you cannot have been gaping they cannot have been gaping
Interrogative form
Simple form
can I gape? can you gape? can he gape? can we gape? can you gape? can they gape?
V-ing form
can I be gaping? can you be gaping? can he be gaping? can we be gaping? can you be gaping? can they be gaping?
Perfect
can I have gaped? can you have gaped? can he have gaped? can we have gaped? can you have gaped? can they have gaped?
V-ing perfect
can I have been gaping? can you have been gaping? can he have been gaping? can we have been gaping? can you have been gaping? can they have been gaping?
Interro-negative form
Simple form
can I not gape? can you not gape? can he not gape? can we not gape? can you not gape? can they not gape?
V-ing form
can I not be gaping? can you not be gaping? can he not be gaping? can we not be gaping? can you not be gaping? can they not be gaping?
Perfect
can I not have gaped? can you not have gaped? can he not have gaped? can we not have gaped? can you not have gaped? can they not have gaped?
V-ing perfect
can I not have been gaping? can you not have been gaping? can he not have been gaping? can we not have been gaping? can you not have been gaping? can they not have been gaping?